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added function for voltage reads

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This commit is contained in:
Erwin Repolust 2023-03-16 01:33:57 +01:00
parent ec08432f92
commit 2c3fa0fd8f
1 changed files with 18 additions and 13 deletions
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31
usermods/Battery/usermod_v2_Battery.h
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@ -114,6 +114,17 @@ class UsermodBattery : public Usermod
}
}
float readVoltage()
{
#ifdef ARDUINO_ARCH_ESP32
// use calibrated millivolts analogread on esp32 (150 mV ~ 2450 mV default attentuation) and divide by 1000 to get from milivolts to volts and multiply by voltage multiplier and apply calibration value
return (analogReadMilliVolts(batteryPin) / 1000.0f) * voltageMultiplier + calibration;
#else
// use analog read on esp8266 ( 0V ~ 1V no attenuation options) and divide by ADC precision 1023 and multiply by voltage multiplier and apply calibration value
return (analogRead(batteryPin) / 1023.0f) * voltageMultiplier + calibration;
#endif
}
public:
//Functions called by WLED
@ -130,8 +141,7 @@ class UsermodBattery : public Usermod
if (pinManager.allocatePin(batteryPin, false, PinOwner::UM_Battery)) {
DEBUG_PRINTLN(F("Battery pin allocation succeeded."));
success = true;
//use calibrated millivolts analogread on esp32 (150 mV ~ 2450 mV default) and divide by 1000 to get from milivolts to volts and multiply by voltage divider ratio and apply calibration value
voltage = (analogReadMilliVolts(batteryPin) / 1000.0f) * voltageMultiplier + calibration;
voltage = readVoltage();
}
if (!success) {
@ -142,8 +152,7 @@ class UsermodBattery : public Usermod
}
#else //ESP8266 boards have only one analog input pin A0
pinMode(batteryPin, INPUT);
//use analog read on esp8266 ( 150 mV ~ 3000mV no attenuation options) and divide by ADC precision 1023 and multiply by voltage divider ratio and apply calibration value
voltage = (analogRead(batteryPin) / 1023.0f) * voltageMultiplier + calibration;
voltage = readVoltage();
#endif
nextReadTime = millis() + readingInterval;
@ -183,17 +192,10 @@ class UsermodBattery : public Usermod
initializing = false;
#ifdef ARDUINO_ARCH_ESP32
// use calibrated millivolts analogread on esp32 (150 mV ~ 2450 mV default) and divide by 1000 to get from milivolts to volts and multiply by voltage divider and apply calibration value
rawValue = (analogReadMilliVolts(batteryPin) / 1000.0f) * voltageMultiplier + calibration;
rawValue = readVoltage();
// filter with exponential smoothing because ADC in esp32 is fluctuating too much for a good single readout
voltage = voltage + alpha * (rawValue - voltage);
#else
// use analog read on esp8266 ( 150 mV ~ 3000mV no attenuation options) and divide by ADC precision 1023 and multiply by 3v ADC max voltage and apply calibration value
rawValue = (analogRead(batteryPin) / 1023.0f) * voltageMultiplier + calibration;
// filter with exponential smoothing
voltage = voltage + alpha * (rawValue - voltage);
#endif
// check if voltage is within specified voltage range, allow 10% over/under voltage - removed cause this just makes it hard for people to troubleshoot as the voltage in the web gui will say invalid instead of displaying a voltage
//voltage = ((voltage < minBatteryVoltage * 0.85f) || (voltage > maxBatteryVoltage * 1.1f)) ? -1.0f : voltage;
@ -380,6 +382,9 @@ class UsermodBattery : public Usermod
lp[FPSTR(_threshold)] = lowPowerIndicatorThreshold;
lp[FPSTR(_duration)] = lowPowerIndicatorDuration;
// read voltage in case calibration or voltage multiplier changed to see immediate effect
voltage = readVoltage()
DEBUG_PRINTLN(F("Battery config saved."));
}