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wireless paper battery reading fix

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richonguzman 2024-08-18 21:06:57 -04:00
parent 8863838210
commit 9cc26ccdae
1 changed files with 5 additions and 0 deletions
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5
src/battery_utils.cpp
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@ -136,7 +136,12 @@ namespace BATTERY_Utils {
#if defined(HELTEC_V3) || defined(HELTEC_V2) || defined(HELTEC_WSL_V3) || defined(HELTEC_WP)
digitalWrite(ADC_CTRL, HIGH);
#endif
#ifdef HELTEC_WP
double inputDivider = (1.0 / (10.0 + 10.0)) * 10.0; // The voltage divider is a 10k + 10k resistor in series
#else
double inputDivider = (1.0 / (390.0 + 100.0)) * 100.0; // The voltage divider is a 390k + 100k resistor in series, 100k on the low side.
#endif
return (((sampleSum/100) * adcReadingTransformation) / inputDivider) + 0.285; // Yes, this offset is excessive, but the ADC on the ESP32s3 is quite inaccurate and noisy. Adjust to own measurements.
#else
#ifdef HAS_ADC_CALIBRATION