MCU: Jerry AC6323A;
Display:0.5 OLED 88*48;
ADC: Choose one of INA226/231 (current low-side sampling, vbus divides the voltage through 68K, 75K R0201, can support <=50V; you can also remove the two R0201, short-circuit 75K to reduce the voltage range to improve accuracy);
DCDC: ZCC2459, SOT23-6 (PIN compatible OC5860, MP2459, FS2459, RY8411, etc. can be selected according to the situation. The system current consumption is about 30mA/3.3V);
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