--- a/service/garageArduino/garage/garage.pde	Mon May 07 00:17:40 2012 -0700
+++ b/service/garageArduino/garage/garage.pde	Mon Jun 25 00:50:33 2012 -0700
@@ -1,4 +1,51 @@
- void setup()   {                
+/*
+board is Arduino UNO with '328
+ */
+
+int datapin  = 7; // DI
+int latchpin = 9; // LI
+int clockpin = 8; // CI
+
+unsigned long SB_CommandPacket;
+int SB_CommandMode;
+int SB_BlueCommand;
+int SB_RedCommand;
+int SB_GreenCommand;
+
+#define SHIFT(val) shiftOut(datapin, clockpin, MSBFIRST, val)
+
+void SB_SendPacket() {
+  /* high bits are 00 for color, 01 for current */
+   SB_CommandPacket = SB_CommandMode & B11;
+   SB_CommandPacket = (SB_CommandPacket << 10)  | (SB_BlueCommand & 1023);
+   SB_CommandPacket = (SB_CommandPacket << 10)  | (SB_RedCommand & 1023);
+   SB_CommandPacket = (SB_CommandPacket << 10)  | (SB_GreenCommand & 1023);
+
+   SHIFT(SB_CommandPacket >> 24);
+   SHIFT(SB_CommandPacket >> 16);
+   SHIFT(SB_CommandPacket >> 8);
+   SHIFT(SB_CommandPacket);
+}
+
+void latch() {
+   delayMicroseconds(100);
+   digitalWrite(latchpin,HIGH); // latch data into registers
+   delayMicroseconds(100);
+   digitalWrite(latchpin,LOW); 
+}
+
+void setCurrent(byte r, byte g, byte b) { 
+ /* 127 = max */ 
+   SB_CommandMode = B01; // Write to current control registers
+   SB_RedCommand = r; 
+   SB_GreenCommand = g;
+   SB_BlueCommand = b;
+   SB_SendPacket();
+   latch();
+}
+
+
+void setup()   {                
   
   pinMode(2, INPUT);
   digitalWrite(2, LOW); 
@@ -16,6 +63,21 @@
   // circuitry to prevent such glitches, so a pull-down
   // resistor may be enough. I haven't checked carefully.
 
+  pinMode(4, OUTPUT);
+  pinMode(5, OUTPUT);
+  // video input selector. picks which video input will be multiplexed
+  // into the bt848 capture card
+
+  pinMode(6, OUTPUT);  // front yard light
+
+  pinMode(7, OUTPUT); // bathroom shiftbrite data
+  pinMode(8, OUTPUT); // bathroom shiftbrite clk
+  pinMode(9, OUTPUT); // bathroom shiftbrite latch
+
+  for (int i=0; i < 1; i++) {
+    setCurrent(127, 127, 127);
+  }
+
   Serial.begin(115200);
 }
 
@@ -74,7 +136,30 @@
       Serial.print("{\"garage\":");
       Serial.print(arg ? "true" : "false");
       Serial.print("}\n");     
-    }
+    } else if (cmd == 0x05) { // set video	
+      digitalWrite(4, arg & 1);
+      digitalWrite(5, arg & 2);
+      Serial.print("{\"videoSelect\":");
+      Serial.print(arg);
+      Serial.print("}\n");     
+    } else if (cmd == 0x06) { // talk to shiftbrite
+      /*
+        one byte for the string length, then a buffer to be shifted
+        out to all the shiftbrites
+      */
+      /*
+      for (int i=0; i < arg / 4; i++) {
+        setCurrent(127, 127, 127);
+      }
+      */
+      for (int i=0; i<arg; i++) {
+        while (Serial.available() == 0) NULL;
+        SHIFT(Serial.read());
+      }
+      latch();
+      Serial.print("{\"ok\":1}\n");
+
+    }   
   }
 }