Attiny soic-14-barebone breakout board
jaco-pixeldump·attiny-soic-14-barebone-breakout-board
About the Attiny soic-14-barebone breakout board
Attiny soic-14-barebone breakout board is an open source AVR/Arduino PCB design by jaco-pixeldump, published on GitHub under the MIT license. It is a 2-layer board measuring 21.1 × 19.6 mm, with 3 components from 3 distinct parts.
Its main chip is the ATtiny3224-SS, from the AVR/Arduino family. By type, the board carries 2 capacitors and 1 IC.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
A compact, breadboard-friendly breakout adapter PCB for 14-pin SOIC Microchip ATtiny microcontrollers (such as ATtiny3224, ATtiny1624, ATtiny824, ATtiny424, as well as 1-series and 0-series parts like ATtiny1614, ATtiny814, ATtiny414, ATtiny404, ATtiny214, ATtiny204).
A compact, breadboard-friendly breakout adapter PCB for 14-pin SOIC Microchip ATtiny microcontrollers (such as ATtiny3224, ATtiny1624, ATtiny824, ATtiny424, as well as 1-series and 0-series parts like ATtiny1614, ATtiny814, ATtiny414, ATtiny404, ATtiny214, ATtiny204).
Designed to bridge the gap between SMD SOIC-14 packaging and rapid breadboard prototyping, this board breaks out all 14 pins into a standard 600 mil DIP form factor with onboard decoupling capacitors for noise-free, stable operation.

Main components on the Attiny soic-14-barebone breakout board
Attiny soic-14-barebone breakout board bill of materials (BOM)
3 components, 3 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATtiny3224-SS | SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | 10nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 10µF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
Attiny soic-14-barebone breakout board design files
The KiCad project lives in the jaco-pixeldump/attiny-soic-14-barebone-breakout-board repository on GitHub; these links point at the commit this page was built from.
- Layoutsoic14-bb.kicad_pcb
- Schematicsoic14-bb.kicad_sch
- BOMhardware_docs/bom.csv
Attiny soic-14-barebone breakout board: common questions
What microcontroller does the Attiny soic-14-barebone breakout board use?
The Attiny soic-14-barebone breakout board is built around the ATtiny3224-SS, from the AVR/Arduino family.
How big is the Attiny soic-14-barebone breakout board?
The Attiny soic-14-barebone breakout board measures 21.1 × 19.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Attiny soic-14-barebone breakout board?
3 components, from 3 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Attiny soic-14-barebone breakout board design files?
From the jaco-pixeldump/attiny-soic-14-barebone-breakout-board repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Attiny soic-14-barebone breakout board design in my own project?
Yes, under the terms of its MIT license, which jaco-pixeldump chose for the repository.
Can I test firmware for the Attiny soic-14-barebone breakout board without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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