Arduino/metronom
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Replace tone() with custom timer

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This commit is contained in:
cryptogopher
2022-10-09 20:34:25 +02:00
parent 374a72fb07
commit f8878d3c37
2 changed files with 30 additions and 10 deletions
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38
metronom.ino
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@@ -1,15 +1,16 @@
#include "SAMDTimerInterrupt.h"
#include "SAMD_ISR_Timer.h"
#define HW_TIMER_INTERVAL_MS 10
SAMDTimer ITimer(TIMER_TC3);
SAMD_ISR_Timer ISR_Timer;
SAMDTimer TaskTimer(TIMER_TC3);
SAMDTimer BuzzerTimer(TIMER_TC5);
SAMD_ISR_Timer TasksISRs;
void TimerHandler(void) { ISR_Timer.run(); }
void TasksHandler(void) { TasksISRs.run(); }
const int COUNTDOWN = 240;
const int PERIOD_MS = 1000;
const int BUZZER_FREQ = 300;
const uint BUTTON_PIN = 6;
const uint BUTTON_LED_PIN = 5;
@@ -28,10 +29,25 @@ void setup() {
initTemperature();
initTube();
ITimer.attachInterruptInterval_MS(10, TimerHandler);
ISR_Timer.setInterval(PERIOD_MS, runMetronome);
ISR_Timer.setInterval(PERIOD_MS, readTemperature);
ISR_Timer.setInterval(PERIOD_MS, updateTube);
pinMode(BUZZER_PIN, OUTPUT);
BuzzerTimer.attachInterrupt(BUZZER_FREQ *2, buzz);
BuzzerTimer.disableTimer();
TaskTimer.attachInterruptInterval_MS(25, TasksHandler);
TasksISRs.setInterval(PERIOD_MS, runMetronome);
TasksISRs.setInterval(PERIOD_MS, readTemperature);
TasksISRs.setInterval(PERIOD_MS, updateTube);
}
volatile bool buzzing = false;
void buzz() {
digitalWrite(BUZZER_PIN, buzzing ? LOW : HIGH);
buzzing = !buzzing;
}
void stopBuzzer() {
BuzzerTimer.disableTimer();
digitalWrite(BUZZER_PIN, LOW);
}
void runMetronome() {
@@ -40,8 +56,10 @@ void runMetronome() {
digitalWrite(BUTTON_LED_PIN, countdown % 2 ? HIGH : LOW);
} else if (countdown == 0) {
//tone(BUZZER_PIN, 300, 100);
TasksISRs.setTimeout(100, stopBuzzer);
BuzzerTimer.enableTimer();
}
}
void loop() {}
void loop() {
}