Hi ,
I have an Expansion Board Base for XIAO with a esp32c3 where a lipo battery is connected. On which pin can I read the battery charge (percentage or voltage) knowing that the GPIO A0 input is already taken by a sensor.
Thanks,
Emmanuel
Welcome!
Hi @cgwaltney , thanks for the diagrams, my problem is that I’d like to measure the battery voltage to know when to charge it. I’d like to know if the Expansion Board has a line connected to the GPIO to see the battery voltage, or do I have to measure it another way?
Thanks
You have to do it another way… The Battery Charging Circuit is not “Smart” we are wishing for this in future revisions
I would think you should bring a line from the battery + over to an Analog Pin… you can use A0 if you are not using the A0 Grove Port You may need a diode or small resistor to make sure you do not accidentally overvolt the pin
Hi there,
So what @cgwaltney suggests works and This Thread here is a good work.
just to add to the suggestion pile.
HTH
GL 
PJ 
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Hi Emmanuel_COLUSSI,
This may be helpful.
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Hi ,
thank you all for your suggestions, I’m going to test what @cgwaltney suggests, I’ll keep you informed.
Emmanuel
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