2 open source boards using the ATtiny25-20SSU
Real designs built with the ATtiny25-20SSU, 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.
AVR/ArduinoMSS-Crossover-Tiny
dabridgham
68.8 × 48.6 mm19 parts2LNo license0
AVR/ArduinoTSAL-driver
uvmaero
21.6 × 56.5 mm11 parts2LCC-BY-SA-4.03
The ATtiny25-20SSU in open source designs
The gallery holds 2 open source boards using the ATtiny25-20SSU from 2 GitHub repositories; a typical one measures about 45.2 × 52.6 mm and carries around 15 components.
100% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.
The most starred is TSAL-driver by uvmaero.
Microcontrollers on boards using the ATtiny25-20SSU
ATtiny25-20SSU: common questions
Where can I find a ATtiny25-20SSU reference design?
Each of the 2 boards on this page is a real design using the ATtiny25-20SSU. 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 ATtiny25-20SSU use?
Most are built on AVR/Arduino (2).
How big is a typical board using the ATtiny25-20SSU?
The median is 45.2 × 52.6 mm, and 100% are two-layer designs.
What is the most popular open source board using the ATtiny25-20SSU?
By GitHub stars, TSAL-driver by uvmaero, with 3 stars.
Can I simulate one of these boards using the ATtiny25-20SSU 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.