3 open source boards using the CJT1117-3.3
Real designs built with the CJT1117-3.3, 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.
QPCR-main
hisashin
100 × 94.8 mm92 parts2LGPL-3.047
ESP32QLAMP-main
142 × 58 mm143 parts2LGPL-3.024
Raspberry PiQPCR-root
138.5 × 65.2 mm85 parts2LGPL-3.047
The CJT1117-3.3 in open source designs
The gallery holds 3 open source boards using the CJT1117-3.3 from 2 GitHub repositories; a typical one measures about 138.5 × 65.2 mm and carries around 92 components.
100% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.
The most starred is QPCR-main by hisashin.
Microcontrollers on boards using the CJT1117-3.3
CJT1117-3.3: common questions
Where can I find a CJT1117-3.3 reference design?
Each of the 3 boards on this page is a real design using the CJT1117-3.3. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
Which microcontrollers do boards using the CJT1117-3.3 use?
Most are built on ESP32 (1) and Raspberry Pi (1).
How big is a typical board using the CJT1117-3.3?
The median is 138.5 × 65.2 mm, and 100% are two-layer designs.
What is the most popular open source board using the CJT1117-3.3?
By GitHub stars, QPCR-main by hisashin, with 47 stars.
Can I simulate one of these boards using the CJT1117-3.3 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.