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Re:CutiePi – All-in-one Raspberry Pi tablet by penkia on Thursday August 15, 2019 @08:30AM (#20704551)
We're using the MCU to swtich power source between USB charging or battery, using it's ADC to serve as a voltage divider to get actual AD value from the battery, and a MP2636GR chip for charging and voltage step-up.

So yay battery percentage! ;-)

Re:CutiePi – All-in-one Raspberry Pi tablet by opless on Thursday August 15, 2019 @10:57AM (#20705756)
How do you do the switching? Using a MOSFET or something else?