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Battery level measurement Metawear C

BramBram
in Firmware
I'm trying to find out which Analog input pin of the NRF51822 chip is used to measure the battery voltage on the Metawear C board. I cannot find it in the datasheet of the C version (For the R serie it is specified on P0.04 - Battery voltage monitor).

Comments

  • MattMatt
    @Bram : On the MetaWearC model the battery voltage and SoC supply voltage are equivalent.  The nRF51822 ADC can be configured measure the supply pin against the internal voltage reference to measure the battery voltage.
  • BramBram
    Ok, that works! Thanks a lot!
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