From 814a99f7330408b48561d7691879c3974f571dfa Mon Sep 17 00:00:00 2001
From: cryptogopher <git6453hub@michalczyk.pro>
Date: Sun, 9 Oct 2022 21:48:16 +0200
Subject: [PATCH] Remove buzzer state variable

---
 buzzer.ino   | 28 ++--------------------------
 metronom.ino |  2 +-
 2 files changed, 3 insertions(+), 27 deletions(-)

diff --git a/buzzer.ino b/buzzer.ino
index 7edbc85..39ff25c 100644
--- a/buzzer.ino
+++ b/buzzer.ino
@@ -1,17 +1,13 @@
-#include <Arduino.h>
-
 SAMDTimer BuzzerTimer(TIMER_TC5);
+
 bool attached = false;
 
 void initBuzzer() {
   pinMode(BUZZER_PIN, OUTPUT);
 }
 
-volatile bool buzzing = false;
 void buzzerISR() {
-  digitalWrite(BUZZER_PIN, buzzing ? LOW : HIGH);
-  buzzing = !buzzing;
-  //digitalToggle(BUZZER_PIN);
+  digitalWrite(BUZZER_PIN, !digitalRead(BUZZER_PIN));
 }
 
 void buzz() {
@@ -24,23 +20,3 @@ void buzz() {
 void noBuzz() {
   BuzzerTimer.disableTimer();
 }
-
-/*
-// https://forum.arduino.cc/t/adding-a-toggle-function-to-wiring-digital-c/975608
-void digitalToggle(uint8_t pin) {
-  uint8_t timer = digitalPinToTimer(pin);
-  uint8_t bit = digitalPinToBitMask(pin);
-  uint8_t port = digitalPinToPort(pin);
-  volatile uint8_t *out;
-  
-  if (port == NOT_A_PIN) return;
-  if (timer != NOT_ON_TIMER) turnOffPWM(timer);
-  
-  out = portOutputRegister(port);
-  
-  uint8_t oldSREG = SREG;
-  cli();
-  *out ^= bit;
-  SREG = oldSREG;
-}
-*/
diff --git a/metronom.ino b/metronom.ino
index e2dc9ac..501be2c 100644
--- a/metronom.ino
+++ b/metronom.ino
@@ -32,7 +32,7 @@ void setup() {
   TaskTimer.attachInterruptInterval_MS(20, TasksHandler);
   TasksISRs.setInterval(PERIOD_MS, runMetronome);
   TasksISRs.setInterval(PERIOD_MS, readTemperature);
-  TasksISRs.setInterval(PERIOD_MS, updateTube);
+  TasksISRs.setInterval(200, updateTube);
 }
 
 void runMetronome() {