Wio Tracker L1: Improve battery reading and add power management #1680
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- Add 100us settling delay after enabling voltage divider - Average 8 ADC samples to reduce noise - Disable voltage divider after reading to save power (~2uA) - Move ADC configuration to begin() for consistency - Move getBattMilliVolts implementation to .cpp file Signed-off-by: Reid Tonking <Reid.Tonking@gmail.com>
- Add boot voltage protection (won't boot below 3.3V) - Add LPCOMP wake configuration for voltage recovery - Implement initiateShutdown() with LPCOMP wake on low voltage - Enable NRF52_POWER_MANAGEMENT build flag Device will enter protective shutdown on low battery and wake automatically when voltage recovers to ~3.7V or USB is connected. Signed-off-by: Reid Tonking <Reid.Tonking@gmail.com>
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wio-tracker-l1: improve battery voltage reading accuracy
wio-tracker-l1: add power management support