diff --git a/rgbled/Adafruit_NeoPixel/Adafruit_NeoPixel.cpp b/rgbled/Adafruit_NeoPixel/Adafruit_NeoPixel.cpp
new file mode 100644
--- /dev/null
+++ b/rgbled/Adafruit_NeoPixel/Adafruit_NeoPixel.cpp
@@ -0,0 +1,1029 @@
+/*-------------------------------------------------------------------------
+ Arduino library to control a wide variety of WS2811- and WS2812-based RGB
+ LED devices such as Adafruit FLORA RGB Smart Pixels and NeoPixel strips.
+ Currently handles 400 and 800 KHz bitstreams on 8, 12 and 16 MHz ATmega
+ MCUs, with LEDs wired for RGB or GRB color order. 8 MHz MCUs provide
+ output on PORTB and PORTD, while 16 MHz chips can handle most output pins
+ (possible exception with upper PORT registers on the Arduino Mega).
+
+ Written by Phil Burgess / Paint Your Dragon for Adafruit Industries,
+ contributions by PJRC and other members of the open source community.
+
+ Adafruit invests time and resources providing this open source code,
+ please support Adafruit and open-source hardware by purchasing products
+ from Adafruit!
+
+ -------------------------------------------------------------------------
+ This file is part of the Adafruit NeoPixel library.
+
+ NeoPixel is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation, either version 3 of
+ the License, or (at your option) any later version.
+
+ NeoPixel is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with NeoPixel. If not, see
+ .
+ -------------------------------------------------------------------------*/
+
+#include "Adafruit_NeoPixel.h"
+
+Adafruit_NeoPixel::Adafruit_NeoPixel(uint16_t n, uint8_t p, uint8_t t) :
+ numLEDs(n), numBytes(n * 3), pin(p), brightness(0),
+ pixels(NULL), type(t), endTime(0)
+#ifdef __AVR__
+ ,port(portOutputRegister(digitalPinToPort(p))),
+ pinMask(digitalPinToBitMask(p))
+#endif
+{
+ if((pixels = (uint8_t *)malloc(numBytes))) {
+ memset(pixels, 0, numBytes);
+ }
+ if(t & NEO_GRB) { // GRB vs RGB; might add others if needed
+ rOffset = 1;
+ gOffset = 0;
+ bOffset = 2;
+ } else if (t & NEO_BRG) {
+ rOffset = 1;
+ gOffset = 2;
+ bOffset = 0;
+ } else {
+ rOffset = 0;
+ gOffset = 1;
+ bOffset = 2;
+ }
+
+}
+
+Adafruit_NeoPixel::~Adafruit_NeoPixel() {
+ if(pixels) free(pixels);
+ pinMode(pin, INPUT);
+}
+
+void Adafruit_NeoPixel::begin(void) {
+ pinMode(pin, OUTPUT);
+ digitalWrite(pin, LOW);
+}
+
+void Adafruit_NeoPixel::show(void) {
+
+ if(!pixels) return;
+
+ // Data latch = 50+ microsecond pause in the output stream. Rather than
+ // put a delay at the end of the function, the ending time is noted and
+ // the function will simply hold off (if needed) on issuing the
+ // subsequent round of data until the latch time has elapsed. This
+ // allows the mainline code to start generating the next frame of data
+ // rather than stalling for the latch.
+ while(!canShow());
+ // endTime is a private member (rather than global var) so that mutliple
+ // instances on different pins can be quickly issued in succession (each
+ // instance doesn't delay the next).
+
+ // In order to make this code runtime-configurable to work with any pin,
+ // SBI/CBI instructions are eschewed in favor of full PORT writes via the
+ // OUT or ST instructions. It relies on two facts: that peripheral
+ // functions (such as PWM) take precedence on output pins, so our PORT-
+ // wide writes won't interfere, and that interrupts are globally disabled
+ // while data is being issued to the LEDs, so no other code will be
+ // accessing the PORT. The code takes an initial 'snapshot' of the PORT
+ // state, computes 'pin high' and 'pin low' values, and writes these back
+ // to the PORT register as needed.
+
+ noInterrupts(); // Need 100% focus on instruction timing
+
+#ifdef __AVR__
+
+ volatile uint16_t
+ i = numBytes; // Loop counter
+ volatile uint8_t
+ *ptr = pixels, // Pointer to next byte
+ b = *ptr++, // Current byte value
+ hi, // PORT w/output bit set high
+ lo; // PORT w/output bit set low
+
+ // Hand-tuned assembly code issues data to the LED drivers at a specific
+ // rate. There's separate code for different CPU speeds (8, 12, 16 MHz)
+ // for both the WS2811 (400 KHz) and WS2812 (800 KHz) drivers. The
+ // datastream timing for the LED drivers allows a little wiggle room each
+ // way (listed in the datasheets), so the conditions for compiling each
+ // case are set up for a range of frequencies rather than just the exact
+ // 8, 12 or 16 MHz values, permitting use with some close-but-not-spot-on
+ // devices (e.g. 16.5 MHz DigiSpark). The ranges were arrived at based
+ // on the datasheet figures and have not been extensively tested outside
+ // the canonical 8/12/16 MHz speeds; there's no guarantee these will work
+ // close to the extremes (or possibly they could be pushed further).
+ // Keep in mind only one CPU speed case actually gets compiled; the
+ // resulting program isn't as massive as it might look from source here.
+
+// 8 MHz(ish) AVR ---------------------------------------------------------
+#if (F_CPU >= 7400000UL) && (F_CPU <= 9500000UL)
+
+#ifdef NEO_KHZ400
+ if((type & NEO_SPDMASK) == NEO_KHZ800) { // 800 KHz bitstream
+#endif
+
+ volatile uint8_t n1, n2 = 0; // First, next bits out
+
+ // Squeezing an 800 KHz stream out of an 8 MHz chip requires code
+ // specific to each PORT register. At present this is only written
+ // to work with pins on PORTD or PORTB, the most likely use case --
+ // this covers all the pins on the Adafruit Flora and the bulk of
+ // digital pins on the Arduino Pro 8 MHz (keep in mind, this code
+ // doesn't even get compiled for 16 MHz boards like the Uno, Mega,
+ // Leonardo, etc., so don't bother extending this out of hand).
+ // Additional PORTs could be added if you really need them, just
+ // duplicate the else and loop and change the PORT. Each add'l
+ // PORT will require about 150(ish) bytes of program space.
+
+ // 10 instruction clocks per bit: HHxxxxxLLL
+ // OUT instructions: ^ ^ ^ (T=0,2,7)
+
+#ifdef PORTD // PORTD isn't present on ATtiny85, etc.
+
+ if(port == &PORTD) {
+
+ hi = PORTD | pinMask;
+ lo = PORTD & ~pinMask;
+ n1 = lo;
+ if(b & 0x80) n1 = hi;
+
+ // Dirty trick: RJMPs proceeding to the next instruction are used
+ // to delay two clock cycles in one instruction word (rather than
+ // using two NOPs). This was necessary in order to squeeze the
+ // loop down to exactly 64 words -- the maximum possible for a
+ // relative branch.
+
+ asm volatile(
+ "headD:" "\n\t" // Clk Pseudocode
+ // Bit 7:
+ "out %[port] , %[hi]" "\n\t" // 1 PORT = hi
+ "mov %[n2] , %[lo]" "\n\t" // 1 n2 = lo
+ "out %[port] , %[n1]" "\n\t" // 1 PORT = n1
+ "rjmp .+0" "\n\t" // 2 nop nop
+ "sbrc %[byte] , 6" "\n\t" // 1-2 if(b & 0x40)
+ "mov %[n2] , %[hi]" "\n\t" // 0-1 n2 = hi
+ "out %[port] , %[lo]" "\n\t" // 1 PORT = lo
+ "rjmp .+0" "\n\t" // 2 nop nop
+ // Bit 6:
+ "out %[port] , %[hi]" "\n\t" // 1 PORT = hi
+ "mov %[n1] , %[lo]" "\n\t" // 1 n1 = lo
+ "out %[port] , %[n2]" "\n\t" // 1 PORT = n2
+ "rjmp .+0" "\n\t" // 2 nop nop
+ "sbrc %[byte] , 5" "\n\t" // 1-2 if(b & 0x20)
+ "mov %[n1] , %[hi]" "\n\t" // 0-1 n1 = hi
+ "out %[port] , %[lo]" "\n\t" // 1 PORT = lo
+ "rjmp .+0" "\n\t" // 2 nop nop
+ // Bit 5:
+ "out %[port] , %[hi]" "\n\t" // 1 PORT = hi
+ "mov %[n2] , %[lo]" "\n\t" // 1 n2 = lo
+ "out %[port] , %[n1]" "\n\t" // 1 PORT = n1
+ "rjmp .+0" "\n\t" // 2 nop nop
+ "sbrc %[byte] , 4" "\n\t" // 1-2 if(b & 0x10)
+ "mov %[n2] , %[hi]" "\n\t" // 0-1 n2 = hi
+ "out %[port] , %[lo]" "\n\t" // 1 PORT = lo
+ "rjmp .+0" "\n\t" // 2 nop nop
+ // Bit 4:
+ "out %[port] , %[hi]" "\n\t" // 1 PORT = hi
+ "mov %[n1] , %[lo]" "\n\t" // 1 n1 = lo
+ "out %[port] , %[n2]" "\n\t" // 1 PORT = n2
+ "rjmp .+0" "\n\t" // 2 nop nop
+ "sbrc %[byte] , 3" "\n\t" // 1-2 if(b & 0x08)
+ "mov %[n1] , %[hi]" "\n\t" // 0-1 n1 = hi
+ "out %[port] , %[lo]" "\n\t" // 1 PORT = lo
+ "rjmp .+0" "\n\t" // 2 nop nop
+ // Bit 3:
+ "out %[port] , %[hi]" "\n\t" // 1 PORT = hi
+ "mov %[n2] , %[lo]" "\n\t" // 1 n2 = lo
+ "out %[port] , %[n1]" "\n\t" // 1 PORT = n1
+ "rjmp .+0" "\n\t" // 2 nop nop
+ "sbrc %[byte] , 2" "\n\t" // 1-2 if(b & 0x04)
+ "mov %[n2] , %[hi]" "\n\t" // 0-1 n2 = hi
+ "out %[port] , %[lo]" "\n\t" // 1 PORT = lo
+ "rjmp .+0" "\n\t" // 2 nop nop
+ // Bit 2:
+ "out %[port] , %[hi]" "\n\t" // 1 PORT = hi
+ "mov %[n1] , %[lo]" "\n\t" // 1 n1 = lo
+ "out %[port] , %[n2]" "\n\t" // 1 PORT = n2
+ "rjmp .+0" "\n\t" // 2 nop nop
+ "sbrc %[byte] , 1" "\n\t" // 1-2 if(b & 0x02)
+ "mov %[n1] , %[hi]" "\n\t" // 0-1 n1 = hi
+ "out %[port] , %[lo]" "\n\t" // 1 PORT = lo
+ "rjmp .+0" "\n\t" // 2 nop nop
+ // Bit 1:
+ "out %[port] , %[hi]" "\n\t" // 1 PORT = hi
+ "mov %[n2] , %[lo]" "\n\t" // 1 n2 = lo
+ "out %[port] , %[n1]" "\n\t" // 1 PORT = n1
+ "rjmp .+0" "\n\t" // 2 nop nop
+ "sbrc %[byte] , 0" "\n\t" // 1-2 if(b & 0x01)
+ "mov %[n2] , %[hi]" "\n\t" // 0-1 n2 = hi
+ "out %[port] , %[lo]" "\n\t" // 1 PORT = lo
+ "sbiw %[count], 1" "\n\t" // 2 i-- (don't act on Z flag yet)
+ // Bit 0:
+ "out %[port] , %[hi]" "\n\t" // 1 PORT = hi
+ "mov %[n1] , %[lo]" "\n\t" // 1 n1 = lo
+ "out %[port] , %[n2]" "\n\t" // 1 PORT = n2
+ "ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++
+ "sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 0x80)
+ "mov %[n1] , %[hi]" "\n\t" // 0-1 n1 = hi
+ "out %[port] , %[lo]" "\n\t" // 1 PORT = lo
+ "brne headD" "\n" // 2 while(i) (Z flag set above)
+ : [byte] "+r" (b),
+ [n1] "+r" (n1),
+ [n2] "+r" (n2),
+ [count] "+w" (i)
+ : [port] "I" (_SFR_IO_ADDR(PORTD)),
+ [ptr] "e" (ptr),
+ [hi] "r" (hi),
+ [lo] "r" (lo));
+
+ } else if(port == &PORTB) {
+
+#endif // PORTD
+
+ // Same as above, just switched to PORTB and stripped of comments.
+ hi = PORTB | pinMask;
+ lo = PORTB & ~pinMask;
+ n1 = lo;
+ if(b & 0x80) n1 = hi;
+
+ asm volatile(
+ "headB:" "\n\t"
+ "out %[port] , %[hi]" "\n\t"
+ "mov %[n2] , %[lo]" "\n\t"
+ "out %[port] , %[n1]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "sbrc %[byte] , 6" "\n\t"
+ "mov %[n2] , %[hi]" "\n\t"
+ "out %[port] , %[lo]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "out %[port] , %[hi]" "\n\t"
+ "mov %[n1] , %[lo]" "\n\t"
+ "out %[port] , %[n2]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "sbrc %[byte] , 5" "\n\t"
+ "mov %[n1] , %[hi]" "\n\t"
+ "out %[port] , %[lo]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "out %[port] , %[hi]" "\n\t"
+ "mov %[n2] , %[lo]" "\n\t"
+ "out %[port] , %[n1]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "sbrc %[byte] , 4" "\n\t"
+ "mov %[n2] , %[hi]" "\n\t"
+ "out %[port] , %[lo]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "out %[port] , %[hi]" "\n\t"
+ "mov %[n1] , %[lo]" "\n\t"
+ "out %[port] , %[n2]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "sbrc %[byte] , 3" "\n\t"
+ "mov %[n1] , %[hi]" "\n\t"
+ "out %[port] , %[lo]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "out %[port] , %[hi]" "\n\t"
+ "mov %[n2] , %[lo]" "\n\t"
+ "out %[port] , %[n1]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "sbrc %[byte] , 2" "\n\t"
+ "mov %[n2] , %[hi]" "\n\t"
+ "out %[port] , %[lo]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "out %[port] , %[hi]" "\n\t"
+ "mov %[n1] , %[lo]" "\n\t"
+ "out %[port] , %[n2]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "sbrc %[byte] , 1" "\n\t"
+ "mov %[n1] , %[hi]" "\n\t"
+ "out %[port] , %[lo]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "out %[port] , %[hi]" "\n\t"
+ "mov %[n2] , %[lo]" "\n\t"
+ "out %[port] , %[n1]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "sbrc %[byte] , 0" "\n\t"
+ "mov %[n2] , %[hi]" "\n\t"
+ "out %[port] , %[lo]" "\n\t"
+ "sbiw %[count], 1" "\n\t"
+ "out %[port] , %[hi]" "\n\t"
+ "mov %[n1] , %[lo]" "\n\t"
+ "out %[port] , %[n2]" "\n\t"
+ "ld %[byte] , %a[ptr]+" "\n\t"
+ "sbrc %[byte] , 7" "\n\t"
+ "mov %[n1] , %[hi]" "\n\t"
+ "out %[port] , %[lo]" "\n\t"
+ "brne headB" "\n"
+ : [byte] "+r" (b), [n1] "+r" (n1), [n2] "+r" (n2), [count] "+w" (i)
+ : [port] "I" (_SFR_IO_ADDR(PORTB)), [ptr] "e" (ptr), [hi] "r" (hi),
+ [lo] "r" (lo));
+
+#ifdef PORTD
+ } // endif PORTB
+#endif
+
+#ifdef NEO_KHZ400
+ } else { // end 800 KHz, do 400 KHz
+
+ // Timing is more relaxed; unrolling the inner loop for each bit is
+ // not necessary. Still using the peculiar RJMPs as 2X NOPs, not out
+ // of need but just to trim the code size down a little.
+ // This 400-KHz-datastream-on-8-MHz-CPU code is not quite identical
+ // to the 800-on-16 code later -- the hi/lo timing between WS2811 and
+ // WS2812 is not simply a 2:1 scale!
+
+ // 20 inst. clocks per bit: HHHHxxxxxxLLLLLLLLLL
+ // ST instructions: ^ ^ ^ (T=0,4,10)
+
+ volatile uint8_t next, bit;
+
+ hi = *port | pinMask;
+ lo = *port & ~pinMask;
+ next = lo;
+ bit = 8;
+
+ asm volatile(
+ "head20:" "\n\t" // Clk Pseudocode (T = 0)
+ "st %a[port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
+ "sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 128)
+ "mov %[next], %[hi]" "\n\t" // 0-1 next = hi (T = 4)
+ "st %a[port], %[next]" "\n\t" // 2 PORT = next (T = 6)
+ "mov %[next] , %[lo]" "\n\t" // 1 next = lo (T = 7)
+ "dec %[bit]" "\n\t" // 1 bit-- (T = 8)
+ "breq nextbyte20" "\n\t" // 1-2 if(bit == 0)
+ "rol %[byte]" "\n\t" // 1 b <<= 1 (T = 10)
+ "st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 12)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 14)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 16)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 18)
+ "rjmp head20" "\n\t" // 2 -> head20 (next bit out)
+ "nextbyte20:" "\n\t" // (T = 10)
+ "st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 12)
+ "nop" "\n\t" // 1 nop (T = 13)
+ "ldi %[bit] , 8" "\n\t" // 1 bit = 8 (T = 14)
+ "ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 16)
+ "sbiw %[count], 1" "\n\t" // 2 i-- (T = 18)
+ "brne head20" "\n" // 2 if(i != 0) -> (next byte)
+ : [port] "+e" (port),
+ [byte] "+r" (b),
+ [bit] "+r" (bit),
+ [next] "+r" (next),
+ [count] "+w" (i)
+ : [hi] "r" (hi),
+ [lo] "r" (lo),
+ [ptr] "e" (ptr));
+ }
+#endif
+
+// 12 MHz(ish) AVR --------------------------------------------------------
+#elif (F_CPU >= 11100000UL) && (F_CPU <= 14300000UL)
+
+#ifdef NEO_KHZ400
+ if((type & NEO_SPDMASK) == NEO_KHZ800) { // 800 KHz bitstream
+#endif
+
+ // In the 12 MHz case, an optimized 800 KHz datastream (no dead time
+ // between bytes) requires a PORT-specific loop similar to the 8 MHz
+ // code (but a little more relaxed in this case).
+
+ // 15 instruction clocks per bit: HHHHxxxxxxLLLLL
+ // OUT instructions: ^ ^ ^ (T=0,4,10)
+
+ volatile uint8_t next;
+
+#ifdef PORTD
+
+ if(port == &PORTD) {
+
+ hi = PORTD | pinMask;
+ lo = PORTD & ~pinMask;
+ next = lo;
+ if(b & 0x80) next = hi;
+
+ // Don't "optimize" the OUT calls into the bitTime subroutine;
+ // we're exploiting the RCALL and RET as 3- and 4-cycle NOPs!
+ asm volatile(
+ "headD:" "\n\t" // (T = 0)
+ "out %[port], %[hi]" "\n\t" // (T = 1)
+ "rcall bitTimeD" "\n\t" // Bit 7 (T = 15)
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeD" "\n\t" // Bit 6
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeD" "\n\t" // Bit 5
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeD" "\n\t" // Bit 4
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeD" "\n\t" // Bit 3
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeD" "\n\t" // Bit 2
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeD" "\n\t" // Bit 1
+ // Bit 0:
+ "out %[port] , %[hi]" "\n\t" // 1 PORT = hi (T = 1)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 3)
+ "ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 5)
+ "out %[port] , %[next]" "\n\t" // 1 PORT = next (T = 6)
+ "mov %[next] , %[lo]" "\n\t" // 1 next = lo (T = 7)
+ "sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 0x80) (T = 8)
+ "mov %[next] , %[hi]" "\n\t" // 0-1 next = hi (T = 9)
+ "nop" "\n\t" // 1 (T = 10)
+ "out %[port] , %[lo]" "\n\t" // 1 PORT = lo (T = 11)
+ "sbiw %[count], 1" "\n\t" // 2 i-- (T = 13)
+ "brne headD" "\n\t" // 2 if(i != 0) -> (next byte)
+ "rjmp doneD" "\n\t"
+ "bitTimeD:" "\n\t" // nop nop nop (T = 4)
+ "out %[port], %[next]" "\n\t" // 1 PORT = next (T = 5)
+ "mov %[next], %[lo]" "\n\t" // 1 next = lo (T = 6)
+ "rol %[byte]" "\n\t" // 1 b <<= 1 (T = 7)
+ "sbrc %[byte], 7" "\n\t" // 1-2 if(b & 0x80) (T = 8)
+ "mov %[next], %[hi]" "\n\t" // 0-1 next = hi (T = 9)
+ "nop" "\n\t" // 1 (T = 10)
+ "out %[port], %[lo]" "\n\t" // 1 PORT = lo (T = 11)
+ "ret" "\n\t" // 4 nop nop nop nop (T = 15)
+ "doneD:" "\n"
+ : [byte] "+r" (b),
+ [next] "+r" (next),
+ [count] "+w" (i)
+ : [port] "I" (_SFR_IO_ADDR(PORTD)),
+ [ptr] "e" (ptr),
+ [hi] "r" (hi),
+ [lo] "r" (lo));
+
+ } else if(port == &PORTB) {
+
+#endif // PORTD
+
+ hi = PORTB | pinMask;
+ lo = PORTB & ~pinMask;
+ next = lo;
+ if(b & 0x80) next = hi;
+
+ // Same as above, just set for PORTB & stripped of comments
+ asm volatile(
+ "headB:" "\n\t"
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeB" "\n\t"
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeB" "\n\t"
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeB" "\n\t"
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeB" "\n\t"
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeB" "\n\t"
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeB" "\n\t"
+ "out %[port], %[hi]" "\n\t"
+ "rcall bitTimeB" "\n\t"
+ "out %[port] , %[hi]" "\n\t"
+ "rjmp .+0" "\n\t"
+ "ld %[byte] , %a[ptr]+" "\n\t"
+ "out %[port] , %[next]" "\n\t"
+ "mov %[next] , %[lo]" "\n\t"
+ "sbrc %[byte] , 7" "\n\t"
+ "mov %[next] , %[hi]" "\n\t"
+ "nop" "\n\t"
+ "out %[port] , %[lo]" "\n\t"
+ "sbiw %[count], 1" "\n\t"
+ "brne headB" "\n\t"
+ "rjmp doneB" "\n\t"
+ "bitTimeB:" "\n\t"
+ "out %[port], %[next]" "\n\t"
+ "mov %[next], %[lo]" "\n\t"
+ "rol %[byte]" "\n\t"
+ "sbrc %[byte], 7" "\n\t"
+ "mov %[next], %[hi]" "\n\t"
+ "nop" "\n\t"
+ "out %[port], %[lo]" "\n\t"
+ "ret" "\n\t"
+ "doneB:" "\n"
+ : [byte] "+r" (b), [next] "+r" (next), [count] "+w" (i)
+ : [port] "I" (_SFR_IO_ADDR(PORTB)), [ptr] "e" (ptr), [hi] "r" (hi),
+ [lo] "r" (lo));
+
+#ifdef PORTD
+ }
+#endif
+
+#ifdef NEO_KHZ400
+ } else { // 400 KHz
+
+ // 30 instruction clocks per bit: HHHHHHxxxxxxxxxLLLLLLLLLLLLLLL
+ // ST instructions: ^ ^ ^ (T=0,6,15)
+
+ volatile uint8_t next, bit;
+
+ hi = *port | pinMask;
+ lo = *port & ~pinMask;
+ next = lo;
+ bit = 8;
+
+ asm volatile(
+ "head30:" "\n\t" // Clk Pseudocode (T = 0)
+ "st %a[port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
+ "sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 128)
+ "mov %[next], %[hi]" "\n\t" // 0-1 next = hi (T = 4)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 6)
+ "st %a[port], %[next]" "\n\t" // 2 PORT = next (T = 8)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 10)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 12)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 14)
+ "nop" "\n\t" // 1 nop (T = 15)
+ "st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 17)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 19)
+ "dec %[bit]" "\n\t" // 1 bit-- (T = 20)
+ "breq nextbyte30" "\n\t" // 1-2 if(bit == 0)
+ "rol %[byte]" "\n\t" // 1 b <<= 1 (T = 22)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 24)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 26)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 28)
+ "rjmp head30" "\n\t" // 2 -> head30 (next bit out)
+ "nextbyte30:" "\n\t" // (T = 22)
+ "nop" "\n\t" // 1 nop (T = 23)
+ "ldi %[bit] , 8" "\n\t" // 1 bit = 8 (T = 24)
+ "ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 26)
+ "sbiw %[count], 1" "\n\t" // 2 i-- (T = 28)
+ "brne head30" "\n" // 1-2 if(i != 0) -> (next byte)
+ : [port] "+e" (port),
+ [byte] "+r" (b),
+ [bit] "+r" (bit),
+ [next] "+r" (next),
+ [count] "+w" (i)
+ : [hi] "r" (hi),
+ [lo] "r" (lo),
+ [ptr] "e" (ptr));
+ }
+#endif
+
+// 16 MHz(ish) AVR --------------------------------------------------------
+#elif (F_CPU >= 15400000UL) && (F_CPU <= 19000000L)
+
+#ifdef NEO_KHZ400
+ if((type & NEO_SPDMASK) == NEO_KHZ800) { // 800 KHz bitstream
+#endif
+
+ // WS2811 and WS2812 have different hi/lo duty cycles; this is
+ // similar but NOT an exact copy of the prior 400-on-8 code.
+
+ // 20 inst. clocks per bit: HHHHHxxxxxxxxLLLLLLL
+ // ST instructions: ^ ^ ^ (T=0,5,13)
+
+ volatile uint8_t next, bit;
+
+ hi = *port | pinMask;
+ lo = *port & ~pinMask;
+ next = lo;
+ bit = 8;
+
+ asm volatile(
+ "head20:" "\n\t" // Clk Pseudocode (T = 0)
+ "st %a[port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
+ "sbrc %[byte], 7" "\n\t" // 1-2 if(b & 128)
+ "mov %[next], %[hi]" "\n\t" // 0-1 next = hi (T = 4)
+ "dec %[bit]" "\n\t" // 1 bit-- (T = 5)
+ "st %a[port], %[next]" "\n\t" // 2 PORT = next (T = 7)
+ "mov %[next] , %[lo]" "\n\t" // 1 next = lo (T = 8)
+ "breq nextbyte20" "\n\t" // 1-2 if(bit == 0) (from dec above)
+ "rol %[byte]" "\n\t" // 1 b <<= 1 (T = 10)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 12)
+ "nop" "\n\t" // 1 nop (T = 13)
+ "st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 15)
+ "nop" "\n\t" // 1 nop (T = 16)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 18)
+ "rjmp head20" "\n\t" // 2 -> head20 (next bit out)
+ "nextbyte20:" "\n\t" // (T = 10)
+ "ldi %[bit] , 8" "\n\t" // 1 bit = 8 (T = 11)
+ "ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 13)
+ "st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 15)
+ "nop" "\n\t" // 1 nop (T = 16)
+ "sbiw %[count], 1" "\n\t" // 2 i-- (T = 18)
+ "brne head20" "\n" // 2 if(i != 0) -> (next byte)
+ : [port] "+e" (port),
+ [byte] "+r" (b),
+ [bit] "+r" (bit),
+ [next] "+r" (next),
+ [count] "+w" (i)
+ : [ptr] "e" (ptr),
+ [hi] "r" (hi),
+ [lo] "r" (lo));
+
+#ifdef NEO_KHZ400
+ } else { // 400 KHz
+
+ // The 400 KHz clock on 16 MHz MCU is the most 'relaxed' version.
+
+ // 40 inst. clocks per bit: HHHHHHHHxxxxxxxxxxxxLLLLLLLLLLLLLLLLLLLL
+ // ST instructions: ^ ^ ^ (T=0,8,20)
+
+ volatile uint8_t next, bit;
+
+ hi = *port | pinMask;
+ lo = *port & ~pinMask;
+ next = lo;
+ bit = 8;
+
+ asm volatile(
+ "head40:" "\n\t" // Clk Pseudocode (T = 0)
+ "st %a[port], %[hi]" "\n\t" // 2 PORT = hi (T = 2)
+ "sbrc %[byte] , 7" "\n\t" // 1-2 if(b & 128)
+ "mov %[next] , %[hi]" "\n\t" // 0-1 next = hi (T = 4)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 6)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 8)
+ "st %a[port], %[next]" "\n\t" // 2 PORT = next (T = 10)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 12)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 14)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 16)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 18)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 20)
+ "st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 22)
+ "nop" "\n\t" // 1 nop (T = 23)
+ "mov %[next] , %[lo]" "\n\t" // 1 next = lo (T = 24)
+ "dec %[bit]" "\n\t" // 1 bit-- (T = 25)
+ "breq nextbyte40" "\n\t" // 1-2 if(bit == 0)
+ "rol %[byte]" "\n\t" // 1 b <<= 1 (T = 27)
+ "nop" "\n\t" // 1 nop (T = 28)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 30)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 32)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 34)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 36)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 38)
+ "rjmp head40" "\n\t" // 2 -> head40 (next bit out)
+ "nextbyte40:" "\n\t" // (T = 27)
+ "ldi %[bit] , 8" "\n\t" // 1 bit = 8 (T = 28)
+ "ld %[byte] , %a[ptr]+" "\n\t" // 2 b = *ptr++ (T = 30)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 32)
+ "st %a[port], %[lo]" "\n\t" // 2 PORT = lo (T = 34)
+ "rjmp .+0" "\n\t" // 2 nop nop (T = 36)
+ "sbiw %[count], 1" "\n\t" // 2 i-- (T = 38)
+ "brne head40" "\n" // 1-2 if(i != 0) -> (next byte)
+ : [port] "+e" (port),
+ [byte] "+r" (b),
+ [bit] "+r" (bit),
+ [next] "+r" (next),
+ [count] "+w" (i)
+ : [ptr] "e" (ptr),
+ [hi] "r" (hi),
+ [lo] "r" (lo));
+ }
+#endif
+
+#else
+ #error "CPU SPEED NOT SUPPORTED"
+#endif
+
+#elif defined(__arm__)
+
+#if defined(__MK20DX128__) || defined(__MK20DX256__) // Teensy 3.0 & 3.1
+#define CYCLES_800_T0H (F_CPU / 4000000)
+#define CYCLES_800_T1H (F_CPU / 1250000)
+#define CYCLES_800 (F_CPU / 800000)
+#define CYCLES_400_T0H (F_CPU / 2000000)
+#define CYCLES_400_T1H (F_CPU / 833333)
+#define CYCLES_400 (F_CPU / 400000)
+
+ uint8_t *p = pixels,
+ *end = p + numBytes, pix, mask;
+ volatile uint8_t *set = portSetRegister(pin),
+ *clr = portClearRegister(pin);
+ uint32_t cyc;
+
+ ARM_DEMCR |= ARM_DEMCR_TRCENA;
+ ARM_DWT_CTRL |= ARM_DWT_CTRL_CYCCNTENA;
+
+#ifdef NEO_KHZ400
+ if((type & NEO_SPDMASK) == NEO_KHZ800) { // 800 KHz bitstream
+#endif
+ cyc = ARM_DWT_CYCCNT + CYCLES_800;
+ while(p < end) {
+ pix = *p++;
+ for(mask = 0x80; mask; mask >>= 1) {
+ while(ARM_DWT_CYCCNT - cyc < CYCLES_800);
+ cyc = ARM_DWT_CYCCNT;
+ *set = 1;
+ if(pix & mask) {
+ while(ARM_DWT_CYCCNT - cyc < CYCLES_800_T1H);
+ } else {
+ while(ARM_DWT_CYCCNT - cyc < CYCLES_800_T0H);
+ }
+ *clr = 1;
+ }
+ }
+ while(ARM_DWT_CYCCNT - cyc < CYCLES_800);
+#ifdef NEO_KHZ400
+ } else { // 400 kHz bitstream
+ cyc = ARM_DWT_CYCCNT + CYCLES_400;
+ while(p < end) {
+ pix = *p++;
+ for(mask = 0x80; mask; mask >>= 1) {
+ while(ARM_DWT_CYCCNT - cyc < CYCLES_400);
+ cyc = ARM_DWT_CYCCNT;
+ *set = 1;
+ if(pix & mask) {
+ while(ARM_DWT_CYCCNT - cyc < CYCLES_400_T1H);
+ } else {
+ while(ARM_DWT_CYCCNT - cyc < CYCLES_400_T0H);
+ }
+ *clr = 1;
+ }
+ }
+ while(ARM_DWT_CYCCNT - cyc < CYCLES_400);
+ }
+#endif
+
+
+
+
+
+#elif defined(__MKL26Z64__) // Teensy-LC
+
+#if F_CPU == 48000000
+ uint8_t *p = pixels,
+ pix, count, dly,
+ bitmask = digitalPinToBitMask(pin);
+ volatile uint8_t *reg = portSetRegister(pin);
+ uint32_t num = numBytes;
+ asm volatile(
+ "L%=_begin:" "\n\t"
+ "ldrb %[pix], [%[p], #0]" "\n\t"
+ "lsl %[pix], #24" "\n\t"
+ "movs %[count], #7" "\n\t"
+ "L%=_loop:" "\n\t"
+ "lsl %[pix], #1" "\n\t"
+ "bcs L%=_loop_one" "\n\t"
+ "L%=_loop_zero:"
+ "strb %[bitmask], [%[reg], #0]" "\n\t"
+ "movs %[dly], #4" "\n\t"
+ "L%=_loop_delay_T0H:" "\n\t"
+ "sub %[dly], #1" "\n\t"
+ "bne L%=_loop_delay_T0H" "\n\t"
+ "strb %[bitmask], [%[reg], #4]" "\n\t"
+ "movs %[dly], #13" "\n\t"
+ "L%=_loop_delay_T0L:" "\n\t"
+ "sub %[dly], #1" "\n\t"
+ "bne L%=_loop_delay_T0L" "\n\t"
+ "b L%=_next" "\n\t"
+ "L%=_loop_one:"
+ "strb %[bitmask], [%[reg], #0]" "\n\t"
+ "movs %[dly], #13" "\n\t"
+ "L%=_loop_delay_T1H:" "\n\t"
+ "sub %[dly], #1" "\n\t"
+ "bne L%=_loop_delay_T1H" "\n\t"
+ "strb %[bitmask], [%[reg], #4]" "\n\t"
+ "movs %[dly], #4" "\n\t"
+ "L%=_loop_delay_T1L:" "\n\t"
+ "sub %[dly], #1" "\n\t"
+ "bne L%=_loop_delay_T1L" "\n\t"
+ "nop" "\n\t"
+ "L%=_next:" "\n\t"
+ "sub %[count], #1" "\n\t"
+ "bne L%=_loop" "\n\t"
+ "lsl %[pix], #1" "\n\t"
+ "bcs L%=_last_one" "\n\t"
+ "L%=_last_zero:"
+ "strb %[bitmask], [%[reg], #0]" "\n\t"
+ "movs %[dly], #4" "\n\t"
+ "L%=_last_delay_T0H:" "\n\t"
+ "sub %[dly], #1" "\n\t"
+ "bne L%=_last_delay_T0H" "\n\t"
+ "strb %[bitmask], [%[reg], #4]" "\n\t"
+ "movs %[dly], #10" "\n\t"
+ "L%=_last_delay_T0L:" "\n\t"
+ "sub %[dly], #1" "\n\t"
+ "bne L%=_last_delay_T0L" "\n\t"
+ "b L%=_repeat" "\n\t"
+ "L%=_last_one:"
+ "strb %[bitmask], [%[reg], #0]" "\n\t"
+ "movs %[dly], #13" "\n\t"
+ "L%=_last_delay_T1H:" "\n\t"
+ "sub %[dly], #1" "\n\t"
+ "bne L%=_last_delay_T1H" "\n\t"
+ "strb %[bitmask], [%[reg], #4]" "\n\t"
+ "movs %[dly], #1" "\n\t"
+ "L%=_last_delay_T1L:" "\n\t"
+ "sub %[dly], #1" "\n\t"
+ "bne L%=_last_delay_T1L" "\n\t"
+ "nop" "\n\t"
+ "L%=_repeat:" "\n\t"
+ "add %[p], #1" "\n\t"
+ "sub %[num], #1" "\n\t"
+ "bne L%=_begin" "\n\t"
+ "L%=_done:" "\n\t"
+ : [p] "+r" (p),
+ [pix] "=&r" (pix),
+ [count] "=&r" (count),
+ [dly] "=&r" (dly),
+ [num] "+r" (num)
+ : [bitmask] "r" (bitmask),
+ [reg] "r" (reg)
+ );
+#else
+#error "Sorry, only 48 MHz is supported, please set Tools > CPU Speed to 48 MHz"
+#endif
+
+
+#else // Arduino Due
+
+ #define SCALE VARIANT_MCK / 2UL / 1000000UL
+ #define INST (2UL * F_CPU / VARIANT_MCK)
+ #define TIME_800_0 ((int)(0.40 * SCALE + 0.5) - (5 * INST))
+ #define TIME_800_1 ((int)(0.80 * SCALE + 0.5) - (5 * INST))
+ #define PERIOD_800 ((int)(1.25 * SCALE + 0.5) - (5 * INST))
+ #define TIME_400_0 ((int)(0.50 * SCALE + 0.5) - (5 * INST))
+ #define TIME_400_1 ((int)(1.20 * SCALE + 0.5) - (5 * INST))
+ #define PERIOD_400 ((int)(2.50 * SCALE + 0.5) - (5 * INST))
+
+ int pinMask, time0, time1, period, t;
+ Pio *port;
+ volatile WoReg *portSet, *portClear, *timeValue, *timeReset;
+ uint8_t *p, *end, pix, mask;
+
+ pmc_set_writeprotect(false);
+ pmc_enable_periph_clk((uint32_t)TC3_IRQn);
+ TC_Configure(TC1, 0,
+ TC_CMR_WAVE | TC_CMR_WAVSEL_UP | TC_CMR_TCCLKS_TIMER_CLOCK1);
+ TC_Start(TC1, 0);
+
+ pinMask = g_APinDescription[pin].ulPin; // Don't 'optimize' these into
+ port = g_APinDescription[pin].pPort; // declarations above. Want to
+ portSet = &(port->PIO_SODR); // burn a few cycles after
+ portClear = &(port->PIO_CODR); // starting timer to minimize
+ timeValue = &(TC1->TC_CHANNEL[0].TC_CV); // the initial 'while'.
+ timeReset = &(TC1->TC_CHANNEL[0].TC_CCR);
+ p = pixels;
+ end = p + numBytes;
+ pix = *p++;
+ mask = 0x80;
+
+#ifdef NEO_KHZ400
+ if((type & NEO_SPDMASK) == NEO_KHZ800) { // 800 KHz bitstream
+#endif
+ time0 = TIME_800_0;
+ time1 = TIME_800_1;
+ period = PERIOD_800;
+#ifdef NEO_KHZ400
+ } else { // 400 KHz bitstream
+ time0 = TIME_400_0;
+ time1 = TIME_400_1;
+ period = PERIOD_400;
+ }
+#endif
+
+ for(t = time0;; t = time0) {
+ if(pix & mask) t = time1;
+ while(*timeValue < period);
+ *portSet = pinMask;
+ *timeReset = TC_CCR_CLKEN | TC_CCR_SWTRG;
+ while(*timeValue < t);
+ *portClear = pinMask;
+ if(!(mask >>= 1)) { // This 'inside-out' loop logic utilizes
+ if(p >= end) break; // idle time to minimize inter-byte delays.
+ pix = *p++;
+ mask = 0x80;
+ }
+ }
+ while(*timeValue < period); // Wait for last bit
+ TC_Stop(TC1, 0);
+
+#endif // end Arduino Due
+
+#endif // end Architecture select
+
+ interrupts();
+ endTime = micros(); // Save EOD time for latch on next call
+}
+
+// Set the output pin number
+void Adafruit_NeoPixel::setPin(uint8_t p) {
+ pinMode(pin, INPUT);
+ pin = p;
+ pinMode(p, OUTPUT);
+ digitalWrite(p, LOW);
+#ifdef __AVR__
+ port = portOutputRegister(digitalPinToPort(p));
+ pinMask = digitalPinToBitMask(p);
+#endif
+}
+
+// Set pixel color from separate R,G,B components:
+void Adafruit_NeoPixel::setPixelColor(
+ uint16_t n, uint8_t r, uint8_t g, uint8_t b) {
+ if(n < numLEDs) {
+ if(brightness) { // See notes in setBrightness()
+ r = (r * brightness) >> 8;
+ g = (g * brightness) >> 8;
+ b = (b * brightness) >> 8;
+ }
+ uint8_t *p = &pixels[n * 3];
+ p[rOffset] = r;
+ p[gOffset] = g;
+ p[bOffset] = b;
+ }
+}
+
+// Set pixel color from 'packed' 32-bit RGB color:
+void Adafruit_NeoPixel::setPixelColor(uint16_t n, uint32_t c) {
+ if(n < numLEDs) {
+ uint8_t
+ r = (uint8_t)(c >> 16),
+ g = (uint8_t)(c >> 8),
+ b = (uint8_t)c;
+ if(brightness) { // See notes in setBrightness()
+ r = (r * brightness) >> 8;
+ g = (g * brightness) >> 8;
+ b = (b * brightness) >> 8;
+ }
+ uint8_t *p = &pixels[n * 3];
+ p[rOffset] = r;
+ p[gOffset] = g;
+ p[bOffset] = b;
+ }
+}
+
+// Convert separate R,G,B into packed 32-bit RGB color.
+// Packed format is always RGB, regardless of LED strand color order.
+uint32_t Adafruit_NeoPixel::Color(uint8_t r, uint8_t g, uint8_t b) {
+ return ((uint32_t)r << 16) | ((uint32_t)g << 8) | b;
+}
+
+// Query color from previously-set pixel (returns packed 32-bit RGB value)
+uint32_t Adafruit_NeoPixel::getPixelColor(uint16_t n) const {
+ if(n >= numLEDs) {
+ // Out of bounds, return no color.
+ return 0;
+ }
+ uint8_t *p = &pixels[n * 3];
+ uint32_t c = ((uint32_t)p[rOffset] << 16) |
+ ((uint32_t)p[gOffset] << 8) |
+ (uint32_t)p[bOffset];
+ // Adjust this back up to the true color, as setting a pixel color will
+ // scale it back down again.
+ if(brightness) { // See notes in setBrightness()
+ //Cast the color to a byte array
+ uint8_t * c_ptr =reinterpret_cast(&c);
+ c_ptr[0] = (c_ptr[0] << 8)/brightness;
+ c_ptr[1] = (c_ptr[1] << 8)/brightness;
+ c_ptr[2] = (c_ptr[2] << 8)/brightness;
+ }
+ return c; // Pixel # is out of bounds
+}
+
+// Returns pointer to pixels[] array. Pixel data is stored in device-
+// native format and is not translated here. Application will need to be
+// aware whether pixels are RGB vs. GRB and handle colors appropriately.
+uint8_t *Adafruit_NeoPixel::getPixels(void) const {
+ return pixels;
+}
+
+uint16_t Adafruit_NeoPixel::numPixels(void) const {
+ return numLEDs;
+}
+
+// Adjust output brightness; 0=darkest (off), 255=brightest. This does
+// NOT immediately affect what's currently displayed on the LEDs. The
+// next call to show() will refresh the LEDs at this level. However,
+// this process is potentially "lossy," especially when increasing
+// brightness. The tight timing in the WS2811/WS2812 code means there
+// aren't enough free cycles to perform this scaling on the fly as data
+// is issued. So we make a pass through the existing color data in RAM
+// and scale it (subsequent graphics commands also work at this
+// brightness level). If there's a significant step up in brightness,
+// the limited number of steps (quantization) in the old data will be
+// quite visible in the re-scaled version. For a non-destructive
+// change, you'll need to re-render the full strip data. C'est la vie.
+void Adafruit_NeoPixel::setBrightness(uint8_t b) {
+ // Stored brightness value is different than what's passed.
+ // This simplifies the actual scaling math later, allowing a fast
+ // 8x8-bit multiply and taking the MSB. 'brightness' is a uint8_t,
+ // adding 1 here may (intentionally) roll over...so 0 = max brightness
+ // (color values are interpreted literally; no scaling), 1 = min
+ // brightness (off), 255 = just below max brightness.
+ uint8_t newBrightness = b + 1;
+ if(newBrightness != brightness) { // Compare against prior value
+ // Brightness has changed -- re-scale existing data in RAM
+ uint8_t c,
+ *ptr = pixels,
+ oldBrightness = brightness - 1; // De-wrap old brightness value
+ uint16_t scale;
+ if(oldBrightness == 0) scale = 0; // Avoid /0
+ else if(b == 255) scale = 65535 / oldBrightness;
+ else scale = (((uint16_t)newBrightness << 8) - 1) / oldBrightness;
+ for(uint16_t i=0; i> 8;
+ }
+ brightness = newBrightness;
+ }
+}
+
+//Return the brightness value
+uint8_t Adafruit_NeoPixel::getBrightness(void) const {
+ return brightness - 1;
+}
+
+void Adafruit_NeoPixel::clear() {
+ memset(pixels, 0, numBytes);
+}
diff --git a/rgbled/Adafruit_NeoPixel/Adafruit_NeoPixel.h b/rgbled/Adafruit_NeoPixel/Adafruit_NeoPixel.h
new file mode 100644
--- /dev/null
+++ b/rgbled/Adafruit_NeoPixel/Adafruit_NeoPixel.h
@@ -0,0 +1,97 @@
+/*--------------------------------------------------------------------
+ This file is part of the Adafruit NeoPixel library.
+
+ NeoPixel is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation, either version 3 of
+ the License, or (at your option) any later version.
+
+ NeoPixel is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with NeoPixel. If not, see
+ .
+ --------------------------------------------------------------------*/
+
+#ifndef ADAFRUIT_NEOPIXEL_H
+#define ADAFRUIT_NEOPIXEL_H
+
+#if (ARDUINO >= 100)
+ #include
+#else
+ #include
+ #include
+#endif
+
+// 'type' flags for LED pixels (third parameter to constructor):
+#define NEO_RGB 0x00 // Wired for RGB data order
+#define NEO_GRB 0x01 // Wired for GRB data order
+#define NEO_BRG 0x04
+
+#define NEO_COLMASK 0x01
+#define NEO_KHZ800 0x02 // 800 KHz datastream
+#define NEO_SPDMASK 0x02
+// Trinket flash space is tight, v1 NeoPixels aren't handled by default.
+// Remove the ifndef/endif to add support -- but code will be bigger.
+// Conversely, can comment out the #defines to save space on other MCUs.
+#ifndef __AVR_ATtiny85__
+#define NEO_KHZ400 0x00 // 400 KHz datastream
+#endif
+
+class Adafruit_NeoPixel {
+
+ public:
+
+ // Constructor: number of LEDs, pin number, LED type
+ Adafruit_NeoPixel(uint16_t n, uint8_t p=6, uint8_t t=NEO_GRB + NEO_KHZ800);
+ ~Adafruit_NeoPixel();
+
+ void
+ begin(void),
+ show(void),
+ setPin(uint8_t p),
+ setPixelColor(uint16_t n, uint8_t r, uint8_t g, uint8_t b),
+ setPixelColor(uint16_t n, uint32_t c),
+ setBrightness(uint8_t),
+ clear();
+ uint8_t
+ *getPixels(void) const,
+ getBrightness(void) const;
+ uint16_t
+ numPixels(void) const;
+ static uint32_t
+ Color(uint8_t r, uint8_t g, uint8_t b);
+ uint32_t
+ getPixelColor(uint16_t n) const;
+ inline bool
+ canShow(void) { return (micros() - endTime) >= 50L; }
+
+ private:
+
+ const uint16_t
+ numLEDs, // Number of RGB LEDs in strip
+ numBytes; // Size of 'pixels' buffer below
+ uint8_t
+ pin, // Output pin number
+ brightness,
+ *pixels, // Holds LED color values (3 bytes each)
+ rOffset, // Index of red byte within each 3-byte pixel
+ gOffset, // Index of green byte
+ bOffset; // Index of blue byte
+ const uint8_t
+ type; // Pixel flags (400 vs 800 KHz, RGB vs GRB color)
+ uint32_t
+ endTime; // Latch timing reference
+#ifdef __AVR__
+ const volatile uint8_t
+ *port; // Output PORT register
+ uint8_t
+ pinMask; // Output PORT bitmask
+#endif
+
+};
+
+#endif // ADAFRUIT_NEOPIXEL_H
diff --git a/rgbled/Adafruit_NeoPixel/COPYING b/rgbled/Adafruit_NeoPixel/COPYING
new file mode 100644
--- /dev/null
+++ b/rgbled/Adafruit_NeoPixel/COPYING
@@ -0,0 +1,794 @@
+
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+ Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+ Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so. This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software. The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products. If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+ Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary. To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+ "The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+ To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy. The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+ 1. Source Code.
+
+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
+
+ A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+ The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+ The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+ The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+ The Corresponding Source for a work in source code form is that
+same work.
+
+ 2. Basic Permissions.
+
+ All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+ You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright. Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+ Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+ No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+ When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+ 4. Conveying Verbatim Copies.
+
+ You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+ You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+ 5. Conveying Modified Source Versions.
+
+ You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+ a) The work must carry prominent notices stating that you modified
+ it, and giving a relevant date.
+
+ b) The work must carry prominent notices stating that it is
+ released under this License and any conditions added under section
+ 7. This requirement modifies the requirement in section 4 to
+ "keep intact all notices".
+
+ c) You must license the entire work, as a whole, under this
+ License to anyone who comes into possession of a copy. This
+ License will therefore apply, along with any applicable section 7
+ additional terms, to the whole of the work, and all its parts,
+ regardless of how they are packaged. This License gives no
+ permission to license the work in any other way, but it does not
+ invalidate such permission if you have separately received it.
+
+ d) If the work has interactive user interfaces, each must display
+ Appropriate Legal Notices; however, if the Program has interactive
+ interfaces that do not display Appropriate Legal Notices, your
+ work need not make them do so.
+
+ A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+ 6. Conveying Non-Source Forms.
+
+ You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+ a) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by the
+ Corresponding Source fixed on a durable physical medium
+ customarily used for software interchange.
+
+ b) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by a
+ written offer, valid for at least three years and valid for as
+ long as you offer spare parts or customer support for that product
+ model, to give anyone who possesses the object code either (1) a
+ copy of the Corresponding Source for all the software in the
+ product that is covered by this License, on a durable physical
+ medium customarily used for software interchange, for a price no
+ more than your reasonable cost of physically performing this
+ conveying of source, or (2) access to copy the
+ Corresponding Source from a network server at no charge.
+
+ c) Convey individual copies of the object code with a copy of the
+ written offer to provide the Corresponding Source. This
+ alternative is allowed only occasionally and noncommercially, and
+ only if you received the object code with such an offer, in accord
+ with subsection 6b.
+
+ d) Convey the object code by offering access from a designated
+ place (gratis or for a charge), and offer equivalent access to the
+ Corresponding Source in the same way through the same place at no
+ further charge. You need not require recipients to copy the
+ Corresponding Source along with the object code. If the place to
+ copy the object code is a network server, the Corresponding Source
+ may be on a different server (operated by you or a third party)
+ that supports equivalent copying facilities, provided you maintain
+ clear directions next to the object code saying where to find the
+ Corresponding Source. Regardless of what server hosts the
+ Corresponding Source, you remain obligated to ensure that it is
+ available for as long as needed to satisfy these requirements.
+
+ e) Convey the object code using peer-to-peer transmission, provided
+ you inform other peers where the object code and Corresponding
+ Source of the work are being offered to the general public at no
+ charge under subsection 6d.
+
+ A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+ A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling. In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage. For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product. A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+ "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source. The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+ If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+ The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed. Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+ Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+ 7. Additional Terms.
+
+ "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+ When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.) You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+ Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+ a) Disclaiming warranty or limiting liability differently from the
+ terms of sections 15 and 16 of this License; or
+
+ b) Requiring preservation of specified reasonable legal notices or
+ author attributions in that material or in the Appropriate Legal
+ Notices displayed by works containing it; or
+
+ c) Prohibiting misrepresentation of the origin of that material, or
+ requiring that modified versions of such material be marked in
+ reasonable ways as different from the original version; or
+
+ d) Limiting the use for publicity purposes of names of licensors or
+ authors of the material; or
+
+ e) Declining to grant rights under trademark law for use of some
+ trade names, trademarks, or service marks; or
+
+ f) Requiring indemnification of licensors and authors of that
+ material by anyone who conveys the material (or modified versions of
+ it) with contractual assumptions of liability to the recipient, for
+ any liability that these contractual assumptions directly impose on
+ those licensors and authors.
+
+ All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+ If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+ Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+ 8. Termination.
+
+ You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+ However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+ Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+ 9. Acceptance Not Required for Having Copies.
+
+ You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+ 10. Automatic Licensing of Downstream Recipients.
+
+ Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+ An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+ You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+ 11. Patents.
+
+ A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+ A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+ Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+ In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+ If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+ If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Use with the GNU Affero General Public License.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+
+
+LGPL ADDENDUM:
+
+
+
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc.
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+ This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+ 0. Additional Definitions.
+
+ As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+ "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+ An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+ A "Combined Work" is a work produced by combining or linking an
+Application with the Library. The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+ The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+ The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+ 1. Exception to Section 3 of the GNU GPL.
+
+ You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+ 2. Conveying Modified Versions.
+
+ If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+ a) under this License, provided that you make a good faith effort to
+ ensure that, in the event an Application does not supply the
+ function or data, the facility still operates, and performs
+ whatever part of its purpose remains meaningful, or
+
+ b) under the GNU GPL, with none of the additional permissions of
+ this License applicable to that copy.
+
+ 3. Object Code Incorporating Material from Library Header Files.
+
+ The object code form of an Application may incorporate material from
+a header file that is part of the Library. You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+ a) Give prominent notice with each copy of the object code that the
+ Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the object code with a copy of the GNU GPL and this license
+ document.
+
+ 4. Combined Works.
+
+ You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+ a) Give prominent notice with each copy of the Combined Work that
+ the Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the Combined Work with a copy of the GNU GPL and this license
+ document.
+
+ c) For a Combined Work that displays copyright notices during
+ execution, include the copyright notice for the Library among
+ these notices, as well as a reference directing the user to the
+ copies of the GNU GPL and this license document.
+
+ d) Do one of the following:
+
+ 0) Convey the Minimal Corresponding Source under the terms of this
+ License, and the Corresponding Application Code in a form
+ suitable for, and under terms that permit, the user to
+ recombine or relink the Application with a modified version of
+ the Linked Version to produce a modified Combined Work, in the
+ manner specified by section 6 of the GNU GPL for conveying
+ Corresponding Source.
+
+ 1) Use a suitable shared library mechanism for linking with the
+ Library. A suitable mechanism is one that (a) uses at run time
+ a copy of the Library already present on the user's computer
+ system, and (b) will operate properly with a modified version
+ of the Library that is interface-compatible with the Linked
+ Version.
+
+ e) Provide Installation Information, but only if you would otherwise
+ be required to provide such information under section 6 of the
+ GNU GPL, and only to the extent that such information is
+ necessary to install and execute a modified version of the
+ Combined Work produced by recombining or relinking the
+ Application with a modified version of the Linked Version. (If
+ you use option 4d0, the Installation Information must accompany
+ the Minimal Corresponding Source and Corresponding Application
+ Code. If you use option 4d1, you must provide the Installation
+ Information in the manner specified by section 6 of the GNU GPL
+ for conveying Corresponding Source.)
+
+ 5. Combined Libraries.
+
+ You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+ a) Accompany the combined library with a copy of the same work based
+ on the Library, uncombined with any other library facilities,
+ conveyed under the terms of this License.
+
+ b) Give prominent notice with the combined library that part of it
+ is a work based on the Library, and explaining where to find the
+ accompanying uncombined form of the same work.
+
+ 6. Revised Versions of the GNU Lesser General Public License.
+
+ The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+ If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/rgbled/Adafruit_NeoPixel/README.md b/rgbled/Adafruit_NeoPixel/README.md
new file mode 100644
--- /dev/null
+++ b/rgbled/Adafruit_NeoPixel/README.md
@@ -0,0 +1,12 @@
+Adafruit NeoPixel library
+=========================
+
+Arduino library for controlling single-wire-based LED pixels and strip such as the [Adafruit 60 LED/meter Digital LED strip][strip], the [Adafruit FLORA RGB Smart Pixel][flora], the [Adafruit Breadboard-friendly RGB Smart Pixel][pixel], the [Adafruit NeoPixel Stick][stick], and the [Adafruit NeoPixel Shield][shield].
+
+After downloading, rename folder to 'Adafruit_NeoPixel' and install in Arduino Libraries folder. Restart Arduino IDE, then open File->Sketchbook->Library->Adafruit_NeoPixel->strandtest sketch.
+
+[flora]: http://adafruit.com/products/1060
+[strip]: http://adafruit.com/products/1138
+[pixel]: http://adafruit.com/products/1312
+[stick]: http://adafruit.com/products/1426
+[shield]: http://adafruit.com/products/1430
diff --git a/rgbled/Adafruit_NeoPixel/keywords.txt b/rgbled/Adafruit_NeoPixel/keywords.txt
new file mode 100644
--- /dev/null
+++ b/rgbled/Adafruit_NeoPixel/keywords.txt
@@ -0,0 +1,29 @@
+#######################################
+# Syntax Coloring Map For Adafruit_NeoPixel
+#######################################
+# Class
+#######################################
+
+Adafruit_NeoPixel KEYWORD1
+
+#######################################
+# Methods and Functions
+#######################################
+
+setPixelColor KEYWORD2
+setPin KEYWORD2
+setBrightness KEYWORD2
+numPixels KEYWORD2
+getPixelColor KEYWORD2
+Color KEYWORD2
+
+#######################################
+# Constants
+#######################################
+
+NEO_GRB LITERAL1
+NEO_COLMASK LITERAL1
+NEO_KHZ800 LITERAL1
+NEO_SPDMASK LITERAL1
+NEO_RGB LITERAL1
+NEO_KHZ400 LITERAL1
diff --git a/rgbled/Adafruit_NeoPixel/library.properties b/rgbled/Adafruit_NeoPixel/library.properties
new file mode 100644
--- /dev/null
+++ b/rgbled/Adafruit_NeoPixel/library.properties
@@ -0,0 +1,9 @@
+name=Adafruit NeoPixel
+version=1.0
+author=Adafruit
+maintainer=Adafruit
+sentence=Arduino library for controlling single-wire-based LED pixels and strip.
+paragraph=Arduino library for controlling single-wire-based LED pixels and strip.
+category=Display
+url=https://github.com/adafruit/Adafruit_NeoPixel
+architectures=*
diff --git a/rgbled/makefile b/rgbled/makefile
new file mode 100644
--- /dev/null
+++ b/rgbled/makefile
@@ -0,0 +1,5 @@
+BOARD_TAG = nano328
+ARDUINO_LIBS = Adafruit_NeoPixel
+USER_LIB_PATH := $(realpath .)
+
+include /usr/share/arduino/Arduino.mk
diff --git a/rgbled/nanostrip.cc b/rgbled/nanostrip.cc
new file mode 100644
--- /dev/null
+++ b/rgbled/nanostrip.cc
@@ -0,0 +1,60 @@
+#include
+#include
+
+// Parameter 1 = number of pixels in strip
+// Parameter 2 = pin number (most are valid)
+// Parameter 3 = pixel type flags, add together as needed:
+// NEO_RGB Pixels are wired for RGB bitstream
+// NEO_GRB Pixels are wired for GRB bitstream
+// NEO_KHZ400 400 KHz bitstream (e.g. FLORA pixels)
+// NEO_KHZ800 800 KHz bitstream (e.g. High Density LED strip)
+Adafruit_NeoPixel strip = Adafruit_NeoPixel(50, 5, NEO_RGB + NEO_KHZ800);
+
+// max about 26 with malloc; 36 works with a static array in the class
+
+#define debugLed 13
+void intro() {
+ uint32_t red = strip.Color(255,0,0), black = strip.Color(0,0,0);
+ strip.setPixelColor(0, red); strip.show(); delay(100);
+ strip.setPixelColor(0, black); strip.show(); delay(100);
+ strip.setPixelColor(0, red); strip.show(); delay(100);
+ strip.setPixelColor(0, black); strip.show(); delay(100);
+}
+int main(void) {
+ init();
+ pinMode(debugLed, OUTPUT);
+ strip.begin();
+ intro();
+ Serial.begin(115200);
+
+ uint8_t i,r,g,b;
+ while (1) {
+ while (Serial.available() <= 2) {
+ }
+ i = Serial.read();
+ if (i != 0x60) {
+ continue;
+ }
+ i = Serial.read(); // command
+ if (i == 0) { // set strip: 0x60 0x00
+ digitalWrite(debugLed, 1);
+ for (i=0; i < strip.numPixels(); i++) {
+ while (Serial.available() < 3) {
+ }
+ r = Serial.read();
+ g = Serial.read();
+ b = Serial.read();
+ strip.setPixelColor(i, strip.Color(g, r, b));
+ }
+ strip.show();
+
+ digitalWrite(debugLed, 0);
+ } else if (i == 1) { // set pwm on D3: 0x60 0x01
+ while (Serial.available() < 1) {
+ }
+ analogWrite(3, Serial.read());
+ } else {
+ // unknown command
+ }
+ }
+}