U11Oxmu

Replica portable multi-functional test pen

Overview

This is a replica of the CW32 multi-functional test pen,

featuring a 502030 battery
and a CM2*3 screw and M2*2.5*3.5 thermoforming nut for
casing fixation. See the attached file for specifications.

The pen tip is replaced with a sewing needle to reduce costs.

The attached program is a modified version of the original; please refer to the original project for the original program.
Modifications: Adapted to HannStar panel screen driver.
No other changes.

Soldering diagram

, overall appearance,

head light test,

low-level test

, high-level test

, DC output test,

continuity test,

diode test,

charging test.

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:2026-03-28 16:19:32

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