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feat: lower volume curve (duty=2 min) and add non-blocking Casio double-chirp alarm sound

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Sebastián Nieto 2026-09-09 23:42:19 -03:00
parent 3b868f38dc
commit 88503b0313
2 changed files with 53 additions and 1 deletions
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52
sketch/obd2_gauge/meter.h
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@ -1365,6 +1365,53 @@ void updateMeter(uint8_t pidNo, String response) { // update parameter on screen
}
/*-------------------------------*/
// Non-blocking alarm sound generator: classic Casio double-chirp [bip-bip] every 1 second
uint32_t lastAlarmSoundCycle = 0;
uint8_t alarmSoundStep = 0;
uint32_t alarmSoundStepTime = 0;
void handleAlarmSound(bool anyAlarmActive) {
if (!anyAlarmActive || buzzerVolumeLevel == 0) {
if (alarmSoundStep != 0) {
ledcWrite(buzzerChannel, 0);
alarmSoundStep = 0;
}
return;
}
uint32_t now = millis();
uint16_t duty = VOL_DUTY_TABLE[buzzerVolumeLevel > 5 ? 3 : buzzerVolumeLevel];
// Pattern: [25ms chirp] -> 35ms pause -> [25ms chirp] -> pause until 1000ms
if (alarmSoundStep == 0) {
if (now - lastAlarmSoundCycle >= 1000) {
lastAlarmSoundCycle = now;
alarmSoundStep = 1;
alarmSoundStepTime = now;
ledcSetup(buzzerChannel, 4096, 10);
ledcWrite(buzzerChannel, duty);
}
} else if (alarmSoundStep == 1) { // 25ms first chirp
if (now - alarmSoundStepTime >= 25) {
ledcWrite(buzzerChannel, 0);
alarmSoundStep = 2;
alarmSoundStepTime = now;
}
} else if (alarmSoundStep == 2) { // 35ms gap
if (now - alarmSoundStepTime >= 35) {
ledcSetup(buzzerChannel, 4096, 10);
ledcWrite(buzzerChannel, duty);
alarmSoundStep = 3;
alarmSoundStepTime = now;
}
} else if (alarmSoundStep == 3) { // 25ms second chirp
if (now - alarmSoundStepTime >= 25) {
ledcWrite(buzzerChannel, 0);
alarmSoundStep = 0;
}
}
}
// Non-blocking handler to blink/flash arcs and numerical values on alarm (when in TFT_RED)
void handleArcAlarmFlash() {
uint32_t now = millis();
@ -1375,6 +1422,8 @@ void handleArcAlarmFlash() {
toggleTick = true;
}
bool anyInRedAlarm = false;
if (fullScreenCell >= 0 && fullScreenCell < 4) {
uint8_t cell = fullScreenCell;
if (last_valid_data[cell] != -999) {
@ -1383,6 +1432,7 @@ void handleArcAlarmFlash() {
float data = last_valid_data[cell];
uint16_t col = getMeterColor(pidIdx, data, warn);
bool inRed = (col == TFT_RED);
if (inRed) anyInRedAlarm = true;
bool digit = pidConfig[pidIdx][7].toInt();
String numStr = String(data, digit);
@ -1466,6 +1516,7 @@ void handleArcAlarmFlash() {
float data = last_valid_data[cell];
uint16_t col = getMeterColor(pidIdx, data, warn);
bool inRed = (col == TFT_RED);
if (inRed) anyInRedAlarm = true;
bool digit = pidConfig[pidIdx][7].toInt();
String numStr = String(data, digit);
int x = cell4_x[cell];
@ -1544,6 +1595,7 @@ void handleArcAlarmFlash() {
}
}
}
handleAlarmSound(anyInRedAlarm);
}
// Target and current brightness variables for smooth fade

2
sketch/obd2_gauge/obd2_gauge.ino
View file

@ -94,7 +94,7 @@ String warningValue[4] = { "106", "5000", "15.0", "130" };
bool alarmEnabled[4] = { true, true, true, true };
// Buzzer volume control table (0: Silencio, 1: Ultra Bajo, 2: Muy Bajo, 3: Bajo/Casio, 4: Medio, 5: Alto)
const uint16_t VOL_DUTY_TABLE[6] = { 0, 5, 18, 50, 140, 380 };
const uint16_t VOL_DUTY_TABLE[6] = { 0, 2, 8, 25, 80, 250 };
const char* const VOL_NAME_TABLE[6] = { "SILENCIO", "ULTRA BAJO", "MUY BAJO", "BAJO (CASIO)", "MEDIO", "ALTO" };
uint8_t buzzerVolumeLevel = 3; // Default 3: Bajo (Casio suave)