5 open source boards using the CJ2301_S1

Real designs built with the CJ2301_S1, 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.

The CJ2301_S1 in open source designs

The gallery holds 5 open source boards using the CJ2301_S1 from 1 GitHub repository; a typical one measures about 114.1 × 70 mm and carries around 33 components.

100% use four copper layers or more, and 0% carry an open source license.

The most starred is Servo Controller 2 PCA9685 by greghulette.

Microcontrollers on boards using the CJ2301_S1

What boards using the CJ2301_S1 are built for

CJ2301_S1: common questions

Where can I find a CJ2301_S1 reference design?

Each of the 5 boards on this page is a real design using the CJ2301_S1. 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 CJ2301_S1 use?

Most are built on ESP32 (5).

How big is a typical board using the CJ2301_S1?

The median is 114.1 × 70 mm, and 0% are two-layer designs.

What is the most popular open source board using the CJ2301_S1?

By GitHub stars, Servo Controller 2 PCA9685 by greghulette, with 2 stars.

Can I simulate one of these boards using the CJ2301_S1 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.

Browse boards by part