2 open source boards using the ATtiny44-20SSU

Real designs built with the ATtiny44-20SSU, 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 ATtiny44-20SSU in open source designs

The gallery holds 2 open source boards using the ATtiny44-20SSU from 2 GitHub repositories; a typical one measures about 70.4 × 56.2 mm and carries around 44 components.

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

The most starred is FabISP-USBtinyISP-ATtiny44 by abdontroche.

Microcontrollers on boards using the ATtiny44-20SSU

AVR/Arduino 2

What boards using the ATtiny44-20SSU are built for

USB & debug tools 1

ATtiny44-20SSU: common questions

Where can I find a ATtiny44-20SSU reference design?

Each of the 2 boards on this page is a real design using the ATtiny44-20SSU. 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 ATtiny44-20SSU use?

Most are built on AVR/Arduino (2).

How big is a typical board using the ATtiny44-20SSU?

The median is 70.4 × 56.2 mm, and 100% are two-layer designs.

What is the most popular open source board using the ATtiny44-20SSU?

By GitHub stars, FabISP-USBtinyISP-ATtiny44 by abdontroche, with 6 stars.

Can I simulate one of these boards using the ATtiny44-20SSU 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.