Cefn Hoile / life_detector

Demo code for Life Detector - attempting to share publically so someone else can tweak and reflash

Dependencies:   microbit

main.cpp@0:d9a2b95dc9d8, 2016-06-01 (annotated)

Committer:
cefn
Date:
Wed Jun 01 17:44:46 2016 +0000
Revision:
0:d9a2b95dc9d8
Attempting to publish a tree

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cefn 0:d9a2b95dc9d8 1 #include "MicroBit.h"
cefn 0:d9a2b95dc9d8 2
cefn 0:d9a2b95dc9d8 3 /* Raygun pin mapping - listed in Kitronik breakout order
cefn 0:d9a2b95dc9d8 4 * 0 : MO Motor low-side-switch NPN pin
cefn 0:d9a2b95dc9d8 5 * 5 : TS Trigger Switch (configured as ButtonA)
cefn 0:d9a2b95dc9d8 6 * 1 : L1 Light 1 high-side-switch NPN Base
cefn 0:d9a2b95dc9d8 7 * 8 : L2 Light 2 high-side-switch NPN Base
cefn 0:d9a2b95dc9d8 8 * 11 : RS Red button switch (configured as ButtonB)
cefn 0:d9a2b95dc9d8 9 * 12 : BL Blue LED
cefn 0:d9a2b95dc9d8 10 * 2 : PZ Piezo speaker
cefn 0:d9a2b95dc9d8 11 * 14 : TX 3.3V Serial Transmit Pin
cefn 0:d9a2b95dc9d8 12 * 15 : TX 3.3V Serial Receive Pin
cefn 0:d9a2b95dc9d8 13 * 16 : GS Green Switch (unpowered side)
cefn 0:d9a2b95dc9d8 14 * 3V : 3.3V reference
cefn 0:d9a2b95dc9d8 15 * 0V : Piezo ground, common ground wire from circuit board
cefn 0:d9a2b95dc9d8 16 */
cefn 0:d9a2b95dc9d8 17
cefn 0:d9a2b95dc9d8 18 MicroBit uBit;
cefn 0:d9a2b95dc9d8 19
cefn 0:d9a2b95dc9d8 20 MicroBitPin motor = uBit.io.P0;
cefn 0:d9a2b95dc9d8 21 MicroBitPin speaker = uBit.io.P2;
cefn 0:d9a2b95dc9d8 22
cefn 0:d9a2b95dc9d8 23 MicroBitPin frontLight = uBit.io.P1;
cefn 0:d9a2b95dc9d8 24 MicroBitPin centerLight = uBit.io.P8;
cefn 0:d9a2b95dc9d8 25 MicroBitPin backLight = uBit.io.P12;
cefn 0:d9a2b95dc9d8 26
cefn 0:d9a2b95dc9d8 27 //somehow non-functional
cefn 0:d9a2b95dc9d8 28 //MicroBitButton triggerButton = uBit.buttonA;
cefn 0:d9a2b95dc9d8 29 //MicroBitButton topButton = uBit.buttonB;
cefn 0:d9a2b95dc9d8 30
cefn 0:d9a2b95dc9d8 31 MicroBitPin powerSwitch = uBit.io.P16;
cefn 0:d9a2b95dc9d8 32
cefn 0:d9a2b95dc9d8 33 char commandbytes[] = {0xFF, 0x01, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x79};
cefn 0:d9a2b95dc9d8 34 char respondbytes[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
cefn 0:d9a2b95dc9d8 35
cefn 0:d9a2b95dc9d8 36 bool triggerSwitched = false;
cefn 0:d9a2b95dc9d8 37 bool powerSwitched = false;
cefn 0:d9a2b95dc9d8 38 bool topSwitched = false;
cefn 0:d9a2b95dc9d8 39 bool lifeDetected = false;
cefn 0:d9a2b95dc9d8 40
cefn 0:d9a2b95dc9d8 41 int gas = 0;
cefn 0:d9a2b95dc9d8 42 int backgroundGas = 1600;
cefn 0:d9a2b95dc9d8 43 int diffGas = 200;
cefn 0:d9a2b95dc9d8 44
cefn 0:d9a2b95dc9d8 45 int pitch;
cefn 0:d9a2b95dc9d8 46 unsigned long pitchedTime;
cefn 0:d9a2b95dc9d8 47
cefn 0:d9a2b95dc9d8 48 int minPitch = 1000;
cefn 0:d9a2b95dc9d8 49 int maxPitch = 2000;
cefn 0:d9a2b95dc9d8 50 int pitchCycle = 500;
cefn 0:d9a2b95dc9d8 51
cefn 0:d9a2b95dc9d8 52 bool isAlive(int gas){
cefn 0:d9a2b95dc9d8 53 return gas > backgroundGas + diffGas;
cefn 0:d9a2b95dc9d8 54 }
cefn 0:d9a2b95dc9d8 55
cefn 0:d9a2b95dc9d8 56 void showGas(){
cefn 0:d9a2b95dc9d8 57 if(gas == 0){
cefn 0:d9a2b95dc9d8 58 uBit.display.scrollAsync("?");
cefn 0:d9a2b95dc9d8 59 }
cefn 0:d9a2b95dc9d8 60 else if(gas == 400){
cefn 0:d9a2b95dc9d8 61 uBit.display.scrollAsync("...");
cefn 0:d9a2b95dc9d8 62 }
cefn 0:d9a2b95dc9d8 63 else if(isAlive(gas)){
cefn 0:d9a2b95dc9d8 64 uBit.display.scrollAsync("+++");
cefn 0:d9a2b95dc9d8 65 }
cefn 0:d9a2b95dc9d8 66 else {
cefn 0:d9a2b95dc9d8 67 uBit.display.scrollAsync(gas);
cefn 0:d9a2b95dc9d8 68 }
cefn 0:d9a2b95dc9d8 69 }
cefn 0:d9a2b95dc9d8 70
cefn 0:d9a2b95dc9d8 71 void soundAlarm(){
cefn 0:d9a2b95dc9d8 72 speaker.setAnalogValue(512);
cefn 0:d9a2b95dc9d8 73 }
cefn 0:d9a2b95dc9d8 74
cefn 0:d9a2b95dc9d8 75 void silenceAlarm(){
cefn 0:d9a2b95dc9d8 76 speaker.setAnalogValue(0);
cefn 0:d9a2b95dc9d8 77 }
cefn 0:d9a2b95dc9d8 78
cefn 0:d9a2b95dc9d8 79 void setPitch(int futurePitch){
cefn 0:d9a2b95dc9d8 80 pitchedTime = uBit.systemTime();
cefn 0:d9a2b95dc9d8 81 pitch = futurePitch;
cefn 0:d9a2b95dc9d8 82 speaker.setAnalogPeriodUs(1000000 / futurePitch);
cefn 0:d9a2b95dc9d8 83 }
cefn 0:d9a2b95dc9d8 84
cefn 0:d9a2b95dc9d8 85 void displayComplete(MicroBitEvent e){
cefn 0:d9a2b95dc9d8 86 showGas();
cefn 0:d9a2b95dc9d8 87 }
cefn 0:d9a2b95dc9d8 88
cefn 0:d9a2b95dc9d8 89 int getSample(){
cefn 0:d9a2b95dc9d8 90 uBit.serial.send((uint8_t *)commandbytes, 9);
cefn 0:d9a2b95dc9d8 91
cefn 0:d9a2b95dc9d8 92 uBit.serial.read((uint8_t *)respondbytes, 9);
cefn 0:d9a2b95dc9d8 93
cefn 0:d9a2b95dc9d8 94 char header = respondbytes[1];
cefn 0:d9a2b95dc9d8 95 char highppm = respondbytes[2];
cefn 0:d9a2b95dc9d8 96 char lowppm = respondbytes[3];
cefn 0:d9a2b95dc9d8 97
cefn 0:d9a2b95dc9d8 98 if(header==0x86){
cefn 0:d9a2b95dc9d8 99 return ((int)highppm) * 256 + lowppm;
cefn 0:d9a2b95dc9d8 100 }
cefn 0:d9a2b95dc9d8 101 else{
cefn 0:d9a2b95dc9d8 102 return -1;
cefn 0:d9a2b95dc9d8 103 }
cefn 0:d9a2b95dc9d8 104 }
cefn 0:d9a2b95dc9d8 105
cefn 0:d9a2b95dc9d8 106 void diagnostic(){
cefn 0:d9a2b95dc9d8 107 //Run diagnostic sequence
cefn 0:d9a2b95dc9d8 108 uBit.display.printChar('M', 0);
cefn 0:d9a2b95dc9d8 109 motor.setDigitalValue(true);
cefn 0:d9a2b95dc9d8 110 uBit.sleep(1000);
cefn 0:d9a2b95dc9d8 111
cefn 0:d9a2b95dc9d8 112 uBit.display.printChar('F', 0);
cefn 0:d9a2b95dc9d8 113 frontLight.setDigitalValue(true);
cefn 0:d9a2b95dc9d8 114 uBit.sleep(1000);
cefn 0:d9a2b95dc9d8 115 frontLight.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 116
cefn 0:d9a2b95dc9d8 117 uBit.display.printChar('C', 0);
cefn 0:d9a2b95dc9d8 118 centerLight.setDigitalValue(true);
cefn 0:d9a2b95dc9d8 119 uBit.sleep(1000);
cefn 0:d9a2b95dc9d8 120 centerLight.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 121
cefn 0:d9a2b95dc9d8 122 motor.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 123
cefn 0:d9a2b95dc9d8 124 uBit.display.printChar('B', 0);
cefn 0:d9a2b95dc9d8 125 backLight.setDigitalValue(true);
cefn 0:d9a2b95dc9d8 126 uBit.sleep(1000);
cefn 0:d9a2b95dc9d8 127 backLight.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 128
cefn 0:d9a2b95dc9d8 129 speaker.setAnalogPeriod(1000.0/500.0);
cefn 0:d9a2b95dc9d8 130 speaker.setAnalogValue(512);
cefn 0:d9a2b95dc9d8 131 uBit.sleep(1000);
cefn 0:d9a2b95dc9d8 132 speaker.setAnalogValue(0);
cefn 0:d9a2b95dc9d8 133 }
cefn 0:d9a2b95dc9d8 134
cefn 0:d9a2b95dc9d8 135
cefn 0:d9a2b95dc9d8 136 int main()
cefn 0:d9a2b95dc9d8 137 {
cefn 0:d9a2b95dc9d8 138 uBit.init();
cefn 0:d9a2b95dc9d8 139 uBit.serial.baud(9600);
cefn 0:d9a2b95dc9d8 140 uBit.serial.redirect(MICROBIT_PIN_P14, MICROBIT_PIN_P15);
cefn 0:d9a2b95dc9d8 141
cefn 0:d9a2b95dc9d8 142 //begin with all outputs off
cefn 0:d9a2b95dc9d8 143 motor.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 144 frontLight.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 145 centerLight.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 146 backLight.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 147
cefn 0:d9a2b95dc9d8 148 //force the speaker to be analog
cefn 0:d9a2b95dc9d8 149 speaker.setAnalogValue(0);
cefn 0:d9a2b95dc9d8 150
cefn 0:d9a2b95dc9d8 151 //force switch to a pull-down implied by reading it
cefn 0:d9a2b95dc9d8 152 powerSwitch.getDigitalValue();
cefn 0:d9a2b95dc9d8 153
cefn 0:d9a2b95dc9d8 154 while(powerSwitch.getDigitalValue()==false){
cefn 0:d9a2b95dc9d8 155 uBit.display.scrollAsync("After powering gun, reset micro:bit");
cefn 0:d9a2b95dc9d8 156 }
cefn 0:d9a2b95dc9d8 157
cefn 0:d9a2b95dc9d8 158
cefn 0:d9a2b95dc9d8 159 //create implicit 'loop' showing gas, and trigger it
cefn 0:d9a2b95dc9d8 160 uBit.messageBus.listen( MICROBIT_ID_DISPLAY, MICROBIT_DISPLAY_EVT_ANIMATION_COMPLETE, displayComplete);
cefn 0:d9a2b95dc9d8 161 showGas();
cefn 0:d9a2b95dc9d8 162
cefn 0:d9a2b95dc9d8 163 while(1)
cefn 0:d9a2b95dc9d8 164 {
cefn 0:d9a2b95dc9d8 165 if(triggerSwitched != uBit.buttonA.isPressed()){
cefn 0:d9a2b95dc9d8 166 triggerSwitched = !triggerSwitched;
cefn 0:d9a2b95dc9d8 167 }
cefn 0:d9a2b95dc9d8 168
cefn 0:d9a2b95dc9d8 169 if(topSwitched != uBit.buttonB.isPressed()){
cefn 0:d9a2b95dc9d8 170 topSwitched = !topSwitched;
cefn 0:d9a2b95dc9d8 171
cefn 0:d9a2b95dc9d8 172 if(topSwitched){ //calibration button pushed - acknowledge with new value
cefn 0:d9a2b95dc9d8 173 backgroundGas = getSample();
cefn 0:d9a2b95dc9d8 174 ManagedString prefix("C:");
cefn 0:d9a2b95dc9d8 175 ManagedString suffix(backgroundGas);
cefn 0:d9a2b95dc9d8 176 uBit.display.scroll(prefix+suffix);
cefn 0:d9a2b95dc9d8 177 }
cefn 0:d9a2b95dc9d8 178
cefn 0:d9a2b95dc9d8 179 }
cefn 0:d9a2b95dc9d8 180
cefn 0:d9a2b95dc9d8 181 if(powerSwitched != powerSwitch.getDigitalValue()){ //note, totally different logic than buttons (and different pull)
cefn 0:d9a2b95dc9d8 182 powerSwitched = powerSwitch.getDigitalValue();
cefn 0:d9a2b95dc9d8 183 }
cefn 0:d9a2b95dc9d8 184
cefn 0:d9a2b95dc9d8 185 gas = getSample();
cefn 0:d9a2b95dc9d8 186
cefn 0:d9a2b95dc9d8 187 if(powerSwitched){
cefn 0:d9a2b95dc9d8 188 backLight.setDigitalValue(true);
cefn 0:d9a2b95dc9d8 189 }
cefn 0:d9a2b95dc9d8 190 else{
cefn 0:d9a2b95dc9d8 191 backLight.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 192 }
cefn 0:d9a2b95dc9d8 193
cefn 0:d9a2b95dc9d8 194 if(lifeDetected != isAlive(gas)){
cefn 0:d9a2b95dc9d8 195 lifeDetected = !lifeDetected;
cefn 0:d9a2b95dc9d8 196 setPitch(1000);
cefn 0:d9a2b95dc9d8 197 }
cefn 0:d9a2b95dc9d8 198
cefn 0:d9a2b95dc9d8 199 if(triggerSwitched){
cefn 0:d9a2b95dc9d8 200 motor.setDigitalValue(true);
cefn 0:d9a2b95dc9d8 201 frontLight.setDigitalValue(true);
cefn 0:d9a2b95dc9d8 202 if(lifeDetected){
cefn 0:d9a2b95dc9d8 203 centerLight.setDigitalValue(true);
cefn 0:d9a2b95dc9d8 204 soundAlarm();
cefn 0:d9a2b95dc9d8 205 if(uBit.systemTime() - pitchedTime > 10){
cefn 0:d9a2b95dc9d8 206 if(pitch < maxPitch){
cefn 0:d9a2b95dc9d8 207 setPitch(pitch + (100 * (maxPitch - minPitch)/pitchCycle));
cefn 0:d9a2b95dc9d8 208 }
cefn 0:d9a2b95dc9d8 209 else{
cefn 0:d9a2b95dc9d8 210 setPitch(minPitch);
cefn 0:d9a2b95dc9d8 211 }
cefn 0:d9a2b95dc9d8 212 }
cefn 0:d9a2b95dc9d8 213 }
cefn 0:d9a2b95dc9d8 214 }
cefn 0:d9a2b95dc9d8 215 else{
cefn 0:d9a2b95dc9d8 216 motor.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 217 frontLight.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 218 centerLight.setDigitalValue(false);
cefn 0:d9a2b95dc9d8 219 silenceAlarm();
cefn 0:d9a2b95dc9d8 220 }
cefn 0:d9a2b95dc9d8 221
cefn 0:d9a2b95dc9d8 222 }
cefn 0:d9a2b95dc9d8 223 }