Andy A / SlowPWM

Very simple class to give slow speed PWM using timers and digital out.

Example use...

#include "SlowPWM.h"
SlowPWM MyTimer1(LED1);
SlowPWM MyTimer2(LED2);
SlowPWM MyTimer3(LED3);

main()
{
    MyTimer1.setPeriod(4);
    MyTimer1.setHighTime(2);
    MyTimer1.start();
    MyTimer2.setPeriod(2);
    MyTimer2.setHighTime(1.5);
    MyTimer2.start();
    MyTimer3.setPeriod(3.8);
    MyTimer3.setHighTime(1.5);
    MyTimer3.start();
    while(true) {
        wait(1);
    }
}

Diff: SlowPWM.h

Revision:
3:3f7eb3ad23d4
Parent:
2:c90e2d2f52aa
--- a/SlowPWM.h	Fri Jun 21 09:33:26 2019 +0000
+++ b/SlowPWM.h	Fri Jun 21 09:45:08 2019 +0000
@@ -17,13 +17,13 @@
 // constructor that also starts things running
     SlowPWM( const PinName pin, const float period, const float highTime);
  
-// set the period
+/// set the period
     void setPeriod(const float period);
  
-// set the on time per cycle
+/// set the on time per cycle. If 0 or the period or longer timers are stopped and output set perminently 
     void setHighTime(const float highTime);
 
-// set the on time per cycle as a fraction
+// set the on time per cycle as a fraction of the period.
     void setDutyCycle(const float cycle);
  
 // stop things.