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[Lichuang Development Board] Based on GD32 game expansion machine

Overview

Power module: 5v charging and discharging integrated module, which realizes the energy selection of USB and battery (through the switchability of pmos). Since too many diodes in the selection circuit will cause the 5v voltage to drop, a 5v boost circuit is used to ensure a stable voltage of 5v. Output!
For battery management, choose TP4056 power supply DC chip and choose a small DC-DC chip (choose a larger power consumption one).
Note on welding: It is best to place the interface type on the edge of the PCB! Better plugging and unplugging! Pay attention to the position of the header and the Liangshan Party. Pay attention to the screen welding! Fix the position of the screen.

Design Files

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Update:2025-05-20 22:19:01

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