Example PWM control of RGB LEDs
Dependencies: mbed
Fork of frdm_rgbled by
Using three PWM channels to mix the onboard RGB (Red, Green, Blue) LED to make a variety of colors.
NOTE: This example code does not work with FRDM-K64F.
Diff: main.cpp
- Revision:
- 2:03e5c29343d1
- Parent:
- 1:eabc6f5b51d6
- Child:
- 5:14891bb08b35
diff -r eabc6f5b51d6 -r 03e5c29343d1 main.cpp --- a/main.cpp Fri Oct 12 13:49:40 2012 +0000 +++ b/main.cpp Tue Oct 23 09:33:36 2012 +0000 @@ -4,18 +4,17 @@ PwmOut g (LED_GREEN); PwmOut b (LED_BLUE); -int main() -{ +int main() { r.period(0.001); g.period(0.001); b.period(0.001); - while(1) { - for(float i = 0.0; i < 1.0 ; i += 0.001) { + while (true) { + for (float i = 0.0; i < 1.0 ; i += 0.001) { float p = 3 * i; r = 1.0 - ((p < 1.0) ? 1.0 - p : (p > 2.0) ? p - 2.0 : 0.0); g = 1.0 - ((p < 1.0) ? p : (p > 2.0) ? 0.0 : 2.0 - p); - b = 1.0 - ((p < 1.0) ? 0.0 : (p > 2.0) ? 3.0 - p : p - 1.0); ; + b = 1.0 - ((p < 1.0) ? 0.0 : (p > 2.0) ? 3.0 - p : p - 1.0); wait (0.0025); } }