12 open source boards using the CH334R
Real designs built with the CH334R, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
ESP32Tanmatsu hardware
Nicolai-Electronics
114.9 × 129.9 mm320 parts4LCERN-OHL-P-2.09
ESP32EL6170 Pro Max Plus
jsjsjsjsjsjsjson
128 × 70.5 mm159 parts2LNo license7
Meshphone
DerRKDCB
60 × 80 mm72 parts2LNo license5
ESP32Why2025
ranzbak
114.9 × 129.9 mm327 parts4LNo license1
ESP32Corne Cherry
mornepousse
340.8 × 104.7 mm275 parts4LMIT1
RP2040/RP2350Das4-controller
brandonrc
51.2 × 94 mm58 parts4LMIT1
ESP32Dongle
30 × 42 mm40 parts4LNo license0
RP2040/RP2350TheMasterPad
z3phydev
100 × 100 mm34 parts2LNo license0
RP2040/RP2350Misterydev20k
MiSTle-Dev
90 × 67 mm162 parts2LNo license17
ESP32Corne Cherry
169.3 × 198.4 mm275 parts4LMIT1
ESP32Dongle
30 × 37.5 mm29 parts4LNo license0
Ch334-usbhub vcut
Netetra
95 × 30 mm34 parts2LNo license0
The CH334R in open source designs
The gallery holds 12 open source boards using the CH334R from 11 GitHub repositories; a typical one measures about 97.5 × 87 mm and carries around 116 components.
58% use four copper layers or more, and 33% carry an open source license.
The most starred is Misterydev20k by MiSTle-Dev.
Parts used alongside the CH334R
Microcontrollers on boards using the CH334R
What boards using the CH334R are built for
CH334R: common questions
Where can I find a CH334R reference design?
Each of the 12 boards on this page is a real design using the CH334R. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the CH334R?
The W25Q128JVS, ESP32-S3-WROOM-1, NRF24L01_Breakout, USBLC6-2SC6 and 74LVC2G02HD4-7 appear in the most repositories here.
Which microcontrollers do boards using the CH334R use?
Most are built on ESP32 (7) and RP2040/RP2350 (3).
How big is a typical board using the CH334R?
The median is 97.5 × 87 mm, and 42% are two-layer designs.
What is the most popular open source board using the CH334R?
By GitHub stars, Misterydev20k by MiSTle-Dev, with 17 stars.
Can I simulate one of these boards using the CH334R 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.