9 open source WCH CH32/CH55x boards
Low-cost WCH microcontrollers: CH32F, CH32X and the 8051-based CH55x. Every board here is a public GitHub project with its KiCad files, read for size, layers and parts. Pick one close to your design and simulate its firmware on HardLabs before you build it.
WCH CH32/CH55xTrhmsx
cristianoag
150.4 × 120.4 mm127 parts4LNo license29
WCH CH32/CH55xCh552g dev board
blueOkiris
55.9 × 50.8 mm9 parts2LGPL-3.018
WCH CH32/CH55xL.I.P.S.
milar111
38.6 × 15.8 mm17 parts2LCC-BY-NC-4.014
WCH CH32/CH55xMeishinoCH552
akita11
91 × 55 mm19 parts2LMIT8
WCH CH32/CH55xMinyasX-Combined
kunichiko
129 × 121 mm187 parts4LMIT2
WCH CH32/CH55xNico
Shadow220108
76.1 × 21.5 mm69 parts2LNo license1
WCH CH32/CH55xMeishinoCH552 sample
91 × 55 mm19 parts2LMIT8
WCH CH32/CH55xMinyas-X
129 × 100 mm172 parts4LMIT2
WCH CH32/CH55xPS-OHK Control Board
65 × 114 mm17 parts2LGPL-3.013
Open source WCH CH32/CH55x boards at a glance
The gallery holds 9 open source WCH CH32/CH55x boards from 7 GitHub repositories; a typical one measures about 91 × 55 mm and carries around 19 components.
67% are two-layer designs, the rest use four layers or more, and 67% carry an open source license.
The most starred is Trhmsx by cristianoag.
Parts most used on WCH CH32/CH55x boards
What WCH CH32/CH55x boards are built for
Open source WCH CH32/CH55x boards: common questions
Where can I find open source WCH CH32/CH55x boards?
This page lists 9, each read from its KiCad files on GitHub: board size, layers, the full parts list and a render of the PCB, with links to the original repository.
How big is a typical WCH CH32/CH55x board?
The median is 91 × 55 mm, and 67% are two-layer designs.
What is the most popular open source WCH CH32/CH55x board?
By GitHub stars, Trhmsx by cristianoag, with 29 stars.
Can I simulate one of these WCH CH32/CH55x boards before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.