From d2d4ea4d08ed3679482ee91d003466cab1d3b286 Mon Sep 17 00:00:00 2001 From: Clayton Rogers Date: Sat, 31 Jul 2021 18:47:13 -0400 Subject: [PATCH] Change to more accurate ADC call --- src/Watchy.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/Watchy.cpp b/src/Watchy.cpp index 032df37..cc7e412 100644 --- a/src/Watchy.cpp +++ b/src/Watchy.cpp @@ -648,7 +648,8 @@ weatherData Watchy::getWeatherData(){ } float Watchy::getBatteryVoltage(){ - return analogRead(ADC_PIN) / 4096.0 * 7.23; + // Battery voltage goes through a 1/2 divider. + return analogReadMilliVolts(ADC_PIN) / 1000.0f * 2.0f; } uint16_t Watchy::_readRegister(uint8_t address, uint8_t reg, uint8_t *data, uint16_t len)