2 open source boards using the 3V3 1Amp

Real designs built with the 3V3 1Amp, 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.

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The 3V3 1Amp in open source designs

The gallery holds 2 open source boards using the 3V3 1Amp from 2 GitHub repositories; a typical one measures about 213 × 84.8 mm and carries around 163 components.

100% are two-layer designs, the rest use four layers or more, and 0% carry an open source license.

The most starred is ZX-Max-128-Issue-3 by liveboxandy.

Parts used alongside the 3V3 1Amp

Microcontrollers on boards using the 3V3 1Amp

ESP8266 2

What boards using the 3V3 1Amp are built for

Retro computing 2

3V3 1Amp: common questions

Where can I find a 3V3 1Amp reference design?

Each of the 2 boards on this page is a real design using the 3V3 1Amp. 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 3V3 1Amp?

The 74HC04, AD724JRZ, AS6C1008-55PCN, AT27C256R-45PU and AY-3-8910 appear in the most repositories here.

Which microcontrollers do boards using the 3V3 1Amp use?

Most are built on ESP8266 (2).

How big is a typical board using the 3V3 1Amp?

The median is 213 × 84.8 mm, and 100% are two-layer designs.

What is the most popular open source board using the 3V3 1Amp?

By GitHub stars, ZX-Max-128-Issue-3 by liveboxandy, with 0 stars.

Can I simulate one of these boards using the 3V3 1Amp 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.