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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2
button.ino
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@@ -1,5 +1,7 @@
volatile unsigned long lastButtonPress = millis(); volatile unsigned long lastButtonPress = millis();
// Debouncing na timerze:
// https://github.com/khoih-prog/TimerInterrupt/blob/master/examples/SwitchDebounce/SwitchDebounce.ino
void initButton() { void initButton() {
pinMode(BUTTON_PIN, INPUT_PULLUP); pinMode(BUTTON_PIN, INPUT_PULLUP);
// Order of ISRs matter: RISING should be invoked first // Order of ISRs matter: RISING should be invoked first

38
metronom.ino
View File

@@ -1,15 +1,16 @@
#include "SAMDTimerInterrupt.h" #include "SAMDTimerInterrupt.h"
#include "SAMD_ISR_Timer.h" #include "SAMD_ISR_Timer.h"
#define HW_TIMER_INTERVAL_MS 10 SAMDTimer TaskTimer(TIMER_TC3);
SAMDTimer ITimer(TIMER_TC3); SAMDTimer BuzzerTimer(TIMER_TC5);
SAMD_ISR_Timer ISR_Timer; SAMD_ISR_Timer TasksISRs;
void TimerHandler(void) { ISR_Timer.run(); } void TasksHandler(void) { TasksISRs.run(); }
const int COUNTDOWN = 240; const int COUNTDOWN = 240;
const int PERIOD_MS = 1000; const int PERIOD_MS = 1000;
const int BUZZER_FREQ = 300;
const uint BUTTON_PIN = 6; const uint BUTTON_PIN = 6;
const uint BUTTON_LED_PIN = 5; const uint BUTTON_LED_PIN = 5;
@@ -28,10 +29,25 @@ void setup() {
initTemperature(); initTemperature();
initTube(); initTube();
ITimer.attachInterruptInterval_MS(10, TimerHandler); pinMode(BUZZER_PIN, OUTPUT);
ISR_Timer.setInterval(PERIOD_MS, runMetronome); BuzzerTimer.attachInterrupt(BUZZER_FREQ *2, buzz);
ISR_Timer.setInterval(PERIOD_MS, readTemperature); BuzzerTimer.disableTimer();
ISR_Timer.setInterval(PERIOD_MS, updateTube);
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() { void runMetronome() {
@@ -40,8 +56,10 @@ void runMetronome() {
digitalWrite(BUTTON_LED_PIN, countdown % 2 ? HIGH : LOW); digitalWrite(BUTTON_LED_PIN, countdown % 2 ? HIGH : LOW);
} else if (countdown == 0) { } else if (countdown == 0) {
//tone(BUZZER_PIN, 300, 100); TasksISRs.setTimeout(100, stopBuzzer);
BuzzerTimer.enableTimer();
} }
} }
void loop() {} void loop() {
}