3 open source boards using the ATtiny45-20SU

Real designs built with the ATtiny45-20SU, 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 ATtiny45-20SU in open source designs

The gallery holds 3 open source boards using the ATtiny45-20SU from 3 GitHub repositories; a typical one measures about 38.1 × 38.1 mm and carries around 12 components.

100% are two-layer designs, the rest use four layers or more, and 67% carry an open source license.

The most starred is MIST.1010 by UzixLS.

Microcontrollers on boards using the ATtiny45-20SU

What boards using the ATtiny45-20SU are built for

ATtiny45-20SU: common questions

Where can I find a ATtiny45-20SU reference design?

Each of the 3 boards on this page is a real design using the ATtiny45-20SU. 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 ATtiny45-20SU use?

Most are built on AVR/Arduino (2) and ESP8266 (1).

How big is a typical board using the ATtiny45-20SU?

The median is 38.1 × 38.1 mm, and 100% are two-layer designs.

What is the most popular open source board using the ATtiny45-20SU?

By GitHub stars, MIST.1010 by UzixLS, with 43 stars.

Can I simulate one of these boards using the ATtiny45-20SU 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