To Do/In Progress

Code for Arduino PWM control and voltage sensing

{{{ This code produces a nice pulse width modulation for an output pin which one can visually test with an LED.

// These variables store the flash pattern // and the current state of the LED // 1000ms=1s // 16.6ms= 1/60th of 1 second, or one 60hz cycle. // 8.3ms is half of on 60hz cycle // so 8.3ms OnTime and 8.3ms OffTime adds up to a // full cycle square wave at %50 duty // As long as your on and off both add up to your // desired frequency you should be good.

int ledPin = 10; // the number of the LED pin int ledState = LOW; // ledState used to set the LED unsigned long previousMillis = 0; // will store last time LED was updated long OnTime = 10; // milliseconds of on-time long OffTime = 190; // milliseconds of off-time

void setup() {

 // set the digital pin as output:
 pinMode(ledPin, OUTPUT);

}

void loop() {

 // check to see if it's time to change the state of the LED
 unsigned long currentMillis = millis();

 if((ledState == HIGH) && (currentMillis - previousMillis >= OnTime))
 {
   ledState = LOW;  // Turn it off
   previousMillis = currentMillis;  // Remember the time
   digitalWrite(ledPin, ledState);  // Update the actual LED
 }
 else if ((ledState == LOW) && (currentMillis - previousMillis >= OffTime))
 {
   ledState = HIGH;  // turn it on
   previousMillis = currentMillis;   // Remember the time
   digitalWrite(ledPin, ledState);	  // Update the actual LED
 }

}

}}}