Passing char to a function

Projects Programming
36

we all started somewhere. Don't feel bad.

if you want to get rid of the timer, you can do this

#include <M5Stack.h>

char currentCharEffect = '\0'; // none
int currentVolume = 0; // OFF

unsigned long lastTrigger;
const unsigned long period = 5000;

void playWAV (char effect, int volume)
{
  ...
}

void setup() {
  M5.begin();
  lastTrigger = millis();
}

void loop() {
  if (millis() - lastTrigger >= period) {
    lastTrigger = millis();
    playWAV(currentCharEffect, currentVolume);
  }

  // here some code modifying currentCharEffect and currentVolume
}