PTT CAT control using USB Arduino Nano Every

Very clean installation!

Hi Mick, The full source for my TeensyMaestro is out on GitHub. With everything going on, it will be a challenge to filter out what you need.

Here is a real quick sample:

/*
  Sample Interrupt-driven input
  Len Koppl, KDØRC 
  03/26/24 
  Teensy 4.1(with built - in Ethernet)

*/
// Includes

// Constants
const byte BUTTON_PIN = 0;
const int DEBOUNCE = 20;  // debounce time in ms

// Global Variables
IntervalTimer debounceTimer;

void setup()
{
  attachInterrupt(digitalPinToInterrupt(BUTTON_PIN), buttonISR, FALLING);
}

void loop()
{
  // looping code here
}

// Subroutines

// Interrupt Service Routines
void buttonISR()
{
  detachInterrupt(BUTTON_PIN);  // stop button interrupt to prevent multiple hits (bounce)
  // quick stuff here like setting a variable.  Do not do massive processing in the interrupt service routine.

  debounceTimer.begin(debounceISR, DEBOUNCE);
}

void debounceISR()
{
  debounceTimer.end();
  attachInterrupt(digitalPinToInterrupt(BUTTON_PIN), buttonISR, FALLING); // allow button pushes again after debounce period
}

Hopefully, this helps.