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On boards with BATTERY_PIN defined, check for missing voltage divider net #626

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geeksville opened this issue Jan 4, 2021 · 2 comments
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On boards with BATTERY_PIN defined, check for missing voltage divider net #626

geeksville opened this issue Jan 4, 2021 · 2 comments
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enhancement New feature or request

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@geeksville
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at power up:
enable internal pullup and see if the raw ADC value is saturated at Vcc
then enable internal pulldown and see if raw ADC value is stuck at ground

If both of these are true the voltage divider resistors must not be installed. Disable battery sensing.
@geeksville
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This issue has been mentioned on Meshtastic. There might be relevant details there:

https://meshtastic.discourse.group/t/ttgo-lora32-v2-0-battery-level/1989/18

@geeksville geeksville added the enhancement New feature or request label Jan 4, 2021
@thebentern
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Closing

@jake-b jake-b mentioned this issue Nov 22, 2024
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rickmark pushed a commit to rickmark/meshtastic-firmware that referenced this issue Dec 26, 2024
@jake-b
Support for the ClimateGuard RadSens Geiger-Muller tube (meshtastic#626)
c952f8a 
Co-authored-by: Jake-B <[email protected]>
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@geeksville @thebentern