Zainul Charbiwala
Demo 5 for EE2M02A/CSM213A Fall 2010
main.cpp@0:467a1af48585, 2010-10-22 (annotated)
- Committer:
- zainulcharbiwala
- Date:
- Fri Oct 22 19:56:41 2010 +0000
- Revision:
- 0:467a1af48585
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| zainulcharbiwala | 0:467a1af48585 | 1 | #include "mbed.h" |
| zainulcharbiwala | 0:467a1af48585 | 2 | |
| zainulcharbiwala | 0:467a1af48585 | 3 | DigitalOut myled1(LED1); |
| zainulcharbiwala | 0:467a1af48585 | 4 | DigitalOut myled2(LED2); |
| zainulcharbiwala | 0:467a1af48585 | 5 | DigitalOut myled3(LED3); |
| zainulcharbiwala | 0:467a1af48585 | 6 | Serial bt(p9, p10); // tx, rx |
| zainulcharbiwala | 0:467a1af48585 | 7 | AnalogIn light(p20); |
| zainulcharbiwala | 0:467a1af48585 | 8 | PwmOut servo(p21); |
| zainulcharbiwala | 0:467a1af48585 | 9 | |
| zainulcharbiwala | 0:467a1af48585 | 10 | void servoMove(float pos); |
| zainulcharbiwala | 0:467a1af48585 | 11 | void progressiveLights(float val); |
| zainulcharbiwala | 0:467a1af48585 | 12 | |
| zainulcharbiwala | 0:467a1af48585 | 13 | int main() { |
| zainulcharbiwala | 0:467a1af48585 | 14 | float val; |
| zainulcharbiwala | 0:467a1af48585 | 15 | servo.period(0.020); // servo requires a 20ms period |
| zainulcharbiwala | 0:467a1af48585 | 16 | while(1) { |
| zainulcharbiwala | 0:467a1af48585 | 17 | val = light.read()*5; |
| zainulcharbiwala | 0:467a1af48585 | 18 | if (val < 0) val=0; |
| zainulcharbiwala | 0:467a1af48585 | 19 | if (val > 1) val=1; |
| zainulcharbiwala | 0:467a1af48585 | 20 | bt.printf("Hello World - %f !\r\n", val); |
| zainulcharbiwala | 0:467a1af48585 | 21 | progressiveLights(val); |
| zainulcharbiwala | 0:467a1af48585 | 22 | servoMove(val); |
| zainulcharbiwala | 0:467a1af48585 | 23 | wait(0.01); |
| zainulcharbiwala | 0:467a1af48585 | 24 | } |
| zainulcharbiwala | 0:467a1af48585 | 25 | |
| zainulcharbiwala | 0:467a1af48585 | 26 | } |
| zainulcharbiwala | 0:467a1af48585 | 27 | |
| zainulcharbiwala | 0:467a1af48585 | 28 | void servoMove(float pos) |
| zainulcharbiwala | 0:467a1af48585 | 29 | { |
| zainulcharbiwala | 0:467a1af48585 | 30 | servo.pulsewidth(0.001 + pos/1000); // servo position determined by a pulsewidth between 1-2ms |
| zainulcharbiwala | 0:467a1af48585 | 31 | // wait(0.25); |
| zainulcharbiwala | 0:467a1af48585 | 32 | } |
| zainulcharbiwala | 0:467a1af48585 | 33 | |
| zainulcharbiwala | 0:467a1af48585 | 34 | void progressiveLights(float val) |
| zainulcharbiwala | 0:467a1af48585 | 35 | { |
| zainulcharbiwala | 0:467a1af48585 | 36 | if (val > 0.2) { |
| zainulcharbiwala | 0:467a1af48585 | 37 | myled1 = 1; |
| zainulcharbiwala | 0:467a1af48585 | 38 | } else { |
| zainulcharbiwala | 0:467a1af48585 | 39 | myled1 = 0; |
| zainulcharbiwala | 0:467a1af48585 | 40 | } |
| zainulcharbiwala | 0:467a1af48585 | 41 | if (val > 0.4) { |
| zainulcharbiwala | 0:467a1af48585 | 42 | myled2 = 1; |
| zainulcharbiwala | 0:467a1af48585 | 43 | } else { |
| zainulcharbiwala | 0:467a1af48585 | 44 | myled2 = 0; |
| zainulcharbiwala | 0:467a1af48585 | 45 | } |
| zainulcharbiwala | 0:467a1af48585 | 46 | if (val > 0.6) { |
| zainulcharbiwala | 0:467a1af48585 | 47 | myled3 = 1; |
| zainulcharbiwala | 0:467a1af48585 | 48 | } else { |
| zainulcharbiwala | 0:467a1af48585 | 49 | myled3 = 0; |
| zainulcharbiwala | 0:467a1af48585 | 50 | } |
| zainulcharbiwala | 0:467a1af48585 | 51 | } |