57YgRWl8qV

Multifunctional test pen

Overview

For this JLCPCB activity, I chose to replicate He Diangong's multi-functional test pen project -- https://oshwhub.com/heyh/dian-jing-testpen.
This activity was my first time encountering a relatively complex development board development process, from circuit diagram design to PCB layout, soldering, and final programming. Throughout the process, I truly experienced the practical applications of what I had learned in the past. However, I encountered many problems along the way, but fortunately, I resolved most of them. I will gradually understand the remaining parts later. Due to
time constraints and other commitments within the allotted time by JLCPCB, I only had half the time to complete the project. Nevertheless, I gained a lot, which will be of significant help to my studies. I will continue to find time to improve this project.

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:2026-03-25 07:13:35

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