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This commit is contained in:
Joshua King
2026-02-10 21:31:36 -05:00
parent b2752b8f72
commit 08a2ee0852
6 changed files with 64 additions and 20 deletions
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30
src/sensors/BatterySensor.cpp
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@@ -3,11 +3,12 @@
void BatterySensor::begin() {
pinMode(PIN_BATTERY_ADC, INPUT);
pinMode(PIN_LBO, INPUT);
pinMode(PIN_CHG, INPUT_PULLUP); // CHG is LOW when charging
analogReadResolution(12); // 12-bit ADC (0-4095)
Serial.println("[Battery] Initialized");
Serial.println("[Battery] ADC on GPIO 2, LBO on GPIO 5");
Serial.println("[Battery] ADC on GPIO 2, LBO on GPIO 5, CHG on GPIO 4");
// Initial reading
_voltage = readBatteryVoltage();
@@ -29,30 +30,47 @@ void BatterySensor::loop() {
float prevVoltage = _voltage;
int prevPercent = _percent;
bool wasLow = _isLow;
bool wasCharging = _isCharging;
// Read battery voltage via ADC
_voltage = readBatteryVoltage();
_percent = voltageToPercent(_voltage);
// Check CHG pin (LOW when charging)
bool chgLow = !digitalRead(PIN_CHG);
_isCharging = chgLow;
// Check LBO pin as backup confirmation
bool lboHigh = digitalRead(PIN_LBO);
bool lboIndicatesLow = !lboHigh;
// Battery is low if either voltage is low OR LBO pin indicates low
_isLow = (_voltage < VOLTAGE_LOW) || lboIndicatesLow;
// Battery is low if either voltage is low OR LBO pin indicates low (and not charging)
_isLow = ((_voltage < VOLTAGE_LOW) || lboIndicatesLow) && !_isCharging;
// Log significant changes
if (abs(_percent - prevPercent) >= 5 || _isLow != wasLow) {
if (abs(_percent - prevPercent) >= 5 || _isLow != wasLow || _isCharging != wasCharging) {
Serial.print("[Battery] Voltage: ");
Serial.print(_voltage, 2);
Serial.print("V (");
Serial.print(_percent);
Serial.print("%) LBO: ");
Serial.print("%) ");
if (_isCharging) {
Serial.print("CHARGING ");
}
Serial.print("LBO: ");
Serial.println(lboHigh ? "OK" : "LOW");
if (_isLow && !wasLow) {
if (_isLow && !wasLow && !_isCharging) {
Serial.println("[Battery] ⚠️ LOW BATTERY WARNING - Please recharge!");
}
if (_isCharging && !wasCharging) {
Serial.println("[Battery] 🔌 Charging started");
} else if (!_isCharging && wasCharging) {
Serial.println("[Battery] ✓ Charging complete or disconnected");
}
}
}