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annotate service/garageArduino/garage/garage.pde @ 845:edd2486d6e2c

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rename Ignore-this: 1e379baf7a8a5ae7cf361bd7c6228d7d darcs-hash:20120825212332-312f9-08a24630ac0ab13635b81c3ab7e843e5634a2fb4
author drewp <drewp@bigasterisk.com>
date Sat, 25 Aug 2012 14:23:32 -0700
parents 9cf01cee74f6
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 board is Arduino UNO with '328
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3 */
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4
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5 int datapin = 7; // DI
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6 int latchpin = 9; // LI
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7 int clockpin = 8; // CI
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8
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9 unsigned long SB_CommandPacket;
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10 int SB_CommandMode;
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11 int SB_BlueCommand;
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12 int SB_RedCommand;
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13 int SB_GreenCommand;
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14
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15 #define SHIFT(val) shiftOut(datapin, clockpin, MSBFIRST, val)
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16
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17 void SB_SendPacket() {
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18 /* high bits are 00 for color, 01 for current */
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19 SB_CommandPacket = SB_CommandMode & B11;
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20 SB_CommandPacket = (SB_CommandPacket << 10) | (SB_BlueCommand & 1023);
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21 SB_CommandPacket = (SB_CommandPacket << 10) | (SB_RedCommand & 1023);
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22 SB_CommandPacket = (SB_CommandPacket << 10) | (SB_GreenCommand & 1023);
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23
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24 SHIFT(SB_CommandPacket >> 24);
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25 SHIFT(SB_CommandPacket >> 16);
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26 SHIFT(SB_CommandPacket >> 8);
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27 SHIFT(SB_CommandPacket);
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28 }
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29
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30 void latch() {
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31 delayMicroseconds(100);
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32 digitalWrite(latchpin,HIGH); // latch data into registers
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33 delayMicroseconds(100);
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34 digitalWrite(latchpin,LOW);
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35 }
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36
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37 void setCurrent(byte r, byte g, byte b) {
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38 /* 127 = max */
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39 SB_CommandMode = B01; // Write to current control registers
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40 SB_RedCommand = r;
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41 SB_GreenCommand = g;
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42 SB_BlueCommand = b;
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43 SB_SendPacket();
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44 latch();
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45 }
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46
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47
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48 void setup() {
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49
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50 pinMode(2, INPUT);
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51 digitalWrite(2, LOW);
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52 // PIR sensor on here is a
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53 // http://octopart.com/555-28027-parallax-708653 in a
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54 // http://octopart.com/1551ggy-hammond-15686 box
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55
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56 // the phototransistor on analog2 is jameco 2006414
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57
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58 pinMode(3, OUTPUT);
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59 digitalWrite(3, LOW);
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60 // this drives a relay for the garage door. There is a
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61 // LP filter on it so the garage doesn't open if there's
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62 // an arduino power-on glitch. It may be that atmel has
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63 // circuitry to prevent such glitches, so a pull-down
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64 // resistor may be enough. I haven't checked carefully.
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65
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66 pinMode(4, OUTPUT);
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67 pinMode(5, OUTPUT);
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68 // video input selector. picks which video input will be multiplexed
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69 // into the bt848 capture card
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70
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71 pinMode(6, OUTPUT); // front yard light
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72
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73 pinMode(7, OUTPUT); // bathroom shiftbrite data
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74 pinMode(8, OUTPUT); // bathroom shiftbrite clk
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75 pinMode(9, OUTPUT); // bathroom shiftbrite latch
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76
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77 for (int i=0; i < 1; i++) {
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78 setCurrent(127, 127, 127);
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79 }
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80
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81 Serial.begin(115200);
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82 }
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83
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84 int newBlinks = 0;
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85 int lastLevel = 0;
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86 int threshold = 750;
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87 int hold = 3; // pulse must last this many loops. Guessing-- I don't know the loop rate or the pulse width
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88 int seenFor = 0;
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89
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90 void loop()
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91 {
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92 unsigned char head, cmd, arg;
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93 int level = analogRead(3) < threshold;
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94
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95 if (level) {
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96 seenFor++;
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97 if (seenFor == hold) {
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98 newBlinks++;
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99 }
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100 } else {
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101 seenFor = 0;
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102 }
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103
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104 if (Serial.available() >= 3) {
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105 head = Serial.read();
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106 if (head != 0x60) {
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107 Serial.flush();
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108 return;
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109 }
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110 cmd = Serial.read();
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111 arg = Serial.read();
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112 Serial.flush();
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113 if (cmd == 0x00) {
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114 Serial.print("{\"ok\":true}\n");
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115 } else if (cmd == 0x01) { // poll
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116 Serial.print("{\"newBlinks\":");
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117 Serial.print(newBlinks);
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118 Serial.print(", \"motion\":");
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119 Serial.print(digitalRead(2) ? "true" : "false");
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120 Serial.print("}\n");
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121 newBlinks = 0;
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122 } else if (cmd == 0x02) {
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123 // current level
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124 Serial.print("{\"z\":");
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125 Serial.print(analogRead(3));
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126 Serial.print("}\n");
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127 } else if (cmd == 0x03) {
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128 if (arg != 0) {
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129 threshold = arg << 2;
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130 }
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131 Serial.print("{\"threshold\":");
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132 Serial.print(threshold);
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133 Serial.print("}\n");
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134 } else if (cmd == 0x04) {
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135 digitalWrite(3, arg);
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136 Serial.print("{\"garage\":");
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137 Serial.print(arg ? "true" : "false");
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138 Serial.print("}\n");
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139 } else if (cmd == 0x05) { // set video
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140 digitalWrite(4, arg & 1);
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141 digitalWrite(5, arg & 2);
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142 Serial.print("{\"videoSelect\":");
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143 Serial.print(arg);
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144 Serial.print("}\n");
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145 } else if (cmd == 0x06) { // talk to shiftbrite
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146 /*
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147 one byte for the string length, then a buffer to be shifted
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148 out to all the shiftbrites
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149 */
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150 for (int i=0; i<arg; i++) {
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151 while (Serial.available() == 0) NULL;
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152 SHIFT(Serial.read());
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153 }
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154 latch();
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155 Serial.print("{\"ok\":1}\n");
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156
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drewp <drewp@bigasterisk.com>
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Drew Perttula <drewp@bigasterisk.com>
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Drew Perttula <drewp@bigasterisk.com>
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Drew Perttula <drewp@bigasterisk.com>
parents:
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Drew Perttula <drewp@bigasterisk.com>
parents:
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