4 open source boards using the ESP32_C3_MINI
Real designs built with the ESP32_C3_MINI, 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.
ESP32Solar Project Rev1
Phil-CIA
100 × 99.9 mm171 parts4LNo license0
ESP32Solar Project Rev0 - Manufactured First Build
100 × 99.9 mm157 parts4LNo license0
ESP32Solar Project Rev1 - 2026-07-27 PCB Baseline
100 × 99.9 mm157 parts4LNo license0
ESP32Solar Project PreRoute save
100 × 100 mm155 parts2LNo license0
The ESP32_C3_MINI in open source designs
The gallery holds 4 open source boards using the ESP32_C3_MINI from 1 GitHub repository; a typical one measures about 100 × 99.9 mm and carries around 157 components.
75% use four copper layers or more, and 0% carry an open source license.
The most starred is Solar Project Rev1 by Phil-CIA.
Microcontrollers on boards using the ESP32_C3_MINI
What boards using the ESP32_C3_MINI are built for
ESP32_C3_MINI: common questions
Where can I find a ESP32_C3_MINI reference design?
Each of the 4 boards on this page is a real design using the ESP32_C3_MINI. 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 ESP32_C3_MINI use?
Most are built on ESP32 (4).
How big is a typical board using the ESP32_C3_MINI?
The median is 100 × 99.9 mm, and 25% are two-layer designs.
What is the most popular open source board using the ESP32_C3_MINI?
By GitHub stars, Solar Project Rev1 by Phil-CIA, with 0 stars.
Can I simulate one of these boards using the ESP32_C3_MINI 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.