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penkia
on Aug 15, 2019
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CutiePi – All-in-one Raspberry Pi tablet
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! ;-)
opless
on Aug 15, 2019
[–]
How do you do the switching? Using a MOSFET or something else?
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So yay battery percentage! ;-)