Code for Timing 2 Peripherals

[PeteC]

Can someone point me to code for the Teensy2 that will used to simply pulse two relays at a series of timed intervals? I just want something to get started from and have not found such code yet.

 

[Chris O.]

Can someone point me to code for the Teensy2 that will used to simply pulse two relays at a series of timed intervals? I just want something to get started from and have not found such code yet.

Modified blink example:
Use PIN 13 & PIN 12.

/* Blink without Delay

  Turns on and off a light emitting diode(LED) connected to a digital
  pin, without using the delay() function.  This means that other code
  can run at the same time without being interrupted by the LED code.

  The circuit:
   LED attached from pin 13 to ground.
   Note: on most Arduinos, there is already an LED on the board
  that's attached to pin 13, so no hardware is needed for this example.


  created 2005
  by David A. Mellis
  modified 8 Feb 2010
  by Paul Stoffregen

  This example code is in the public domain.


  http://www.arduino.cc/en/Tutorial/BlinkWithoutDelay
*/

// constants won't change. Used here to set pin numbers:
// Pin 13: Arduino has an LED connected on pin 13
// Pin 11: Teensy 2.0 has the LED on pin 11
// Pin  6: Teensy++ 2.0 has the LED on pin 6
// Pin 13: Teensy 3.0 has the LED on pin 13
const int ledPin =  13;      // the number of the LED pin
const int OtherPin =  12;    // ---> 12

// Variables will change:
int ledState = LOW;             // ledState used to set the LED
long previousMillis = 0;        // will store last time LED was updated

int OtherPinState = LOW;        // OtherPinState
long previousMillis_2 = 0;      //

// the follow variables is a long because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in an int.
long interval_1 = 1000;           // interval at which to blink (milliseconds)
long interval_2 = 2000;           //

void setup() {
  // set the digital pin as output:
  pinMode(ledPin, OUTPUT);    // ---> 13
  pinMode(OtherPin, OUTPUT);  // ---> 12
}

void loop()
{
  // here is where you'd put code that needs to be running all the time.

  // check to see if it's time to blink the LED; that is, if the
  // difference between the current time and last time you blinked
  // the LED is bigger than the interval_1 at which you want to
  // blink the LED.
  unsigned long currentMillis = millis();

  if (currentMillis - previousMillis > interval_1) {
    // save the last time you blinked the LED
    previousMillis = currentMillis;

    // if the LED is off turn it on and vice-versa:
    if (ledState == LOW)
      ledState = HIGH;
    else
      ledState = LOW;

    // set the LED with the ledState of the variable:
    digitalWriteFast(ledPin, ledState);
  }

  // OtherPin #
  unsigned long currentMillis_2 = millis();

  if (currentMillis_2 - previousMillis_2 > interval_2) {
    // save the last time you blinked the LED
    previousMillis_2 = currentMillis_2;

    // if the LED is off turn it on and vice-versa:
    if (OtherPinState == LOW)
      OtherPinState = HIGH;
    else
      OtherPinState = LOW;

    // set the LED with the ledState of the variable:
    digitalWriteFast(OtherPin, OtherPinState); // OtherPin #
  }

}

 

[PeteC]

Can someone point me to code for the Teensy2 that will used to simply pulse two relays at a series of timed intervals? I just want something to get started from and have not found such code yet.

Many Thanks Chris! This should get me going.