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CW32 Multi-function Pen

Overview

First, there's the power supply circuit, including the USB-C and

16-pin Type-C interfaces for battery management, and the GX4057 lithium battery management chip.
Then there's the 3.3V regulated power supply for the CW32 microcontroller and buzzer. The 0.96-inch OLED screen is powered

by a SOT-89 packaged voltage regulator chip. Other components include the power button circuit, the main microcontroller

pinout, the OLED screen circuitry

with lighting and indicator lights, and the buzzer circuit. Finally, there are the front and back images of

the analog PCB .

Design Files

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Update:2026-03-25 22:50:29

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