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Multifunctional test pen

Overview

A portable multi-functional test pen with voltage measurement, continuity measurement, diode detection, and signal output functions was built based on the CW32F030.
This pen is a minor modification of the official design.
1. Main controller: CW32F030C8T6

; 2. Charging circuit:

This multi-functional pen uses a TP4056 power management chip to charge the battery (the official solution uses TP4057)
. Since there are many TP4056 power management chips available, the TP4057 was not used;
3. Power supply for the analog section;

4. Schematic diagram

(front and

back) .

Gerber_PCB1_2023-11-17.zip

CW32 Pen Schematic Diagram.pdf

PDF_Multifunctional Test Pen.zip

Altium Multi-functional Test Pen.zip

PADS_Multifunctional Test Pen.zip

BOM_Multifunctional Testing Pen.xlsx

97141

electronic

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-29 00:46:11

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