Hello,
I need help as on the attached pdf drawing or eagle schematic, i am getting 4.5 volts at ESP and RFID reader.
How it works:
At the input it is 12 VDC, going through 5v dc regulator.
The 5 vdc goes to Lipo charger and also to T1.
T1 it is a switch between 12vdc in and battery.
Then, power...
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