Improve the RTC battery readings

TheCacophonyProject · Nov 16, 2024 · fc9b7d8 · fc9b7d8
1 parent 869b9d2
commit fc9b7d8
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/main.cpp b/src/main.cpp
@@ -355,6 +355,9 @@ void checkBatteryLowVoltageDivider() {
 }
 
 void checkBatteryRTC() {
+  // Make a reading first, this is because the RTC battery first reading is often bad.
+  analogRead(RTC_BAT_SENSE);
+  delayMicroseconds(200);
   battRTC = sampleBattery(RTC_BAT_SENSE);
 }