![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Xbee robot with telemetry, controller code
Dependencies: 4DGL-uLCD-SE DebounceIn PinDetect mbed-rtos mbed
Fork of 2Xbee_Controller by
Diff: main.cpp
- Revision:
- 0:9439ccb44422
- Child:
- 1:2c67639795a4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Nov 28 18:00:06 2014 +0000 @@ -0,0 +1,75 @@ +#include "mbed.h" +#include "rtos.h" +DigitalOut myled(LED1); +PwmOut myled2(LED2); +PwmOut myled3(LED3); +PwmOut myled4(LED4); + +inline float random_number(){ + return (rand()/(float(RAND_MAX))); +} + +void beacon(void const *args){ + while(1) { + //LED warm up effect using PWM + for(int i=0; i<50; i++) { + myled2 = i/50.0; + Thread::wait(1000.0*0.02); + } + //LED at full brightness level + myled2 = 1.0; + Thread::wait(1000.0*0.25); + //LED cool down effect using PWM + for(int i=49; i>0; i--) { + myled2 = i/50.0; + Thread::wait(1000.0*0.02); + } + //LED off + myled2 = 0.0; + Thread::wait(1000.0*1.5); + } +} +void welding(void const *args) { + float x = 0.0; + while(1) { + //get a new random number for PWM + x = random_number(); + //add some exponential brightness scaling + //for more of a fast flash effect + myled3 = x*x*x; + //fast update rate for welding flashes + Thread::wait(1000.0*0.02); + //add a random pause between welds + if (random_number()>0.9925) { + myled3 = 0.0; + Thread::wait(1000.0*4.0*random_number()); + } + } +} + +void lighthouse(void const *args){ + float y=0.0; + while(1) { + for(double x=0.0; x <= 3.14159; x = x + 0.0314159) { + y = sin(x); //nice periodic function 0..1..0 + myled4 = y*y*y;//exponential effect - needs a sharp peak + Thread::wait(1000.0*.025); + } + myled4 = 0.0; + //most lighthouses have a 5 second delay - so add another 2.5 + Thread::wait(1000.0*2.5); + } +} + +int main() { + Thread thread2(beacon); + Thread thread3(welding); + Thread thread4(lighthouse); + //main runs standard LED blink demo + while(1) { + myled = 1; + Thread::wait(1000.0*0.2); + myled = 0; + Thread::wait(1000.0*0.2); + } +}