jim hamblen / Mbed 2 deprecated LED_Searchlight

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/

Dependencies:   mbed

main.cpp

Committer:
4180_1
Date:
2014-11-28
Revision:
0:4420127af442

File content as of revision 0:4420127af442:

#include "mbed.h"
//LED Lighthouse or Searchlight lighting effect
PwmOut myled(LED1);
//use Pwm output for dimming

int main()
{
    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
            myled = y*y*y;//exponential effect - needs a sharp peak
            wait(.025);
        }
        myled = 0.0;
        //most lighthouses have a 5 second delay - so add another 2.5
        wait(2.5);
    }
}