2ButtonPOMT.ino

#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 1); // RX, TX

const int LED1_RED = 20;
const int LED1_GREEN = 21;
const int SWITCH_1 = 16;

const int LED2_RED = 7;
const int LED2_GREEN = 8;
const int SWITCH_2 = 9;

bool state1 = false;
bool state2 = false;

volatile bool switch1_state = false;
volatile bool switch2_state = false;

unsigned long last_interrupt_time1 = 0;
unsigned long last_interrupt_time2 = 0;

void switch1_ISR() {
  if (millis() - last_interrupt_time1 > 50) {
    switch1_state = !switch1_state;
    last_interrupt_time1 = millis();
  }
}

void switch2_ISR() {
  if (millis() - last_interrupt_time2 > 50) {
    switch2_state = !switch2_state;
    last_interrupt_time2 = millis();
  }
}

void setup() {
  pinMode(LED1_RED, OUTPUT);
  pinMode(LED1_GREEN, OUTPUT);
  pinMode(SWITCH_1, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(SWITCH_1), switch1_ISR, CHANGE);

  pinMode(LED2_RED, OUTPUT);
  pinMode(LED2_GREEN, OUTPUT);
  pinMode(SWITCH_2, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(SWITCH_2), switch2_ISR, CHANGE);

  digitalWrite(LED1_RED, HIGH);
  digitalWrite(LED1_GREEN, HIGH);
  digitalWrite(LED2_RED, HIGH);
  digitalWrite(LED2_GREEN, HIGH);

  mySerial.begin(9600);
}

void loop() {
  if (switch1_state != state1) {
    state1 = switch1_state;
    if (state1) {
      digitalWrite(LED1_RED, LOW);
      digitalWrite(LED1_GREEN, HIGH);
      mySerial.println("MIC1 set mute 1 true");
    } else {
      digitalWrite(LED1_RED, HIGH);
      digitalWrite(LED1_GREEN, LOW);
      mySerial.println("MIC1 set mute 1 false");
    }
  }

  if (switch2_state != state2) {
    state2 = switch2_state;
    if (state2) {
      digitalWrite(LED2_RED, LOW);
      digitalWrite(LED2_GREEN, HIGH);
      mySerial.println("MIC2 set mute 1 false");
    } else {
      digitalWrite(LED2_RED, HIGH);
      digitalWrite(LED2_GREEN, LOW);
      mySerial.println("MIC2 set mute 1 true");
    }
  }
}