![](/media/cache/profiles/ibmfp2.jpg.50x50_q85.jpg)
Demo of LED lighting effects using PWM and wait for time delays. Pins are setup for LPC1768 platform’s LEDs. For complete information, see http://developer.mbed.org/users/4180_1/notebook/led-lighting-effects-for-modelers/
Revision 0:8eb6d01eab13, committed 2014-11-28
- Comitter:
- 4180_1
- Date:
- Fri Nov 28 17:57:11 2014 +0000
- Commit message:
- ver 1.0
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r 8eb6d01eab13 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Nov 28 17:57:11 2014 +0000 @@ -0,0 +1,21 @@ +#include "mbed.h" +//LED fire lighting effect +PwmOut myled(LED1); +//Use PWM output to enable LED dimming + +//Use Cs random number generator rand(), but scaled and +//converted to a float (range 0.0 to 1.0) for PWM output +inline float random_number() +{ + return (rand()/(float(RAND_MAX))); +} + +int main() +{ + while(1) { +//get a new random number for PWM + myled = random_number(); +//a bit slower time delay can be used for fire + wait(0.04); + } +}
diff -r 000000000000 -r 8eb6d01eab13 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Nov 28 17:57:11 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/031413cf7a89 \ No newline at end of file