4 open source boards using the ESP-12S

Real designs built with the ESP-12S, 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 ESP-12S in open source designs

The gallery holds 4 open source boards using the ESP-12S from 4 GitHub repositories; a typical one measures about 92.5 × 73.2 mm and carries around 82 components.

50% are two-layer designs, the rest use four layers or more, and 100% carry an open source license.

The most starred is Raesp gateway by cziter15.

Microcontrollers on boards using the ESP-12S

What boards using the ESP-12S are built for

ESP-12S: common questions

Where can I find a ESP-12S reference design?

Each of the 4 boards on this page is a real design using the ESP-12S. 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 ESP-12S use?

Most are built on ESP8266 (4).

How big is a typical board using the ESP-12S?

The median is 92.5 × 73.2 mm, and 50% are two-layer designs.

What is the most popular open source board using the ESP-12S?

By GitHub stars, Raesp gateway by cziter15, with 11 stars.

Can I simulate one of these boards using the ESP-12S 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