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Optimize battery voltage reading

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This commit is contained in:
Quency-D
2026-07-16 17:45:00 +08:00
parent a472cd7956
commit 61a8821d3c
1 changed files with 2 additions and 0 deletions
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variants/heltec_rc32/HeltecRC32Board.cpp
+2
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@@ -55,6 +55,7 @@ void HeltecRC32Board::onAfterTransmit() {
uint16_t HeltecRC32Board::getBattMilliVolts() {
analogReadResolution(12);
analogSetAttenuation(ADC_2_5db);
digitalWrite(PIN_ADC_CTRL, ADC_CTRL_ENABLED);
delay(10);
uint32_t raw = 0;
@@ -62,6 +63,7 @@ uint16_t HeltecRC32Board::getBattMilliVolts() {
raw += analogReadMilliVolts(PIN_VBAT_READ);
}
raw = raw / 8;
digitalWrite(PIN_ADC_CTRL, !ADC_CTRL_ENABLED);
return (adc_mult * raw);
}