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WCH-link

Overview

Based on the principle of WCH-Link, I drew a WCH-Link with a Type-C interface. It is smaller in size than the original version and can be easily pulled to a farther place with a data cable for burning.
The attachment provides instructions, original schematics, firmware and burning software.
Qinheng's microcontroller will automatically enter the burning state when it is plugged into USB when there is no program. After that, you need to press the download button and then connect the USB to enter the burning state.
![QQ screenshot 20221104105207.png]

There is a description of the hardware part in the schematic diagram, and the original values are marked on the back of the board.
If you want to add a shell, you can wrap it with transparent heat shrink tubing.

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:2025-08-08 08:18:11

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