14 open source boards using the ATMEGA328P-A
Real designs built with the ATMEGA328P-A, 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/ArduinoSmartPortSD SMD
djtersteegc
41 × 50 mm24 parts2LMIT54
AVR/ArduinoTwelvekey
str-dst
75.2 × 62.6 mm52 parts2LCC-BY-NC-4.048
ESP8266Split flap fae
codingcatgirl
40 × 80 mm39 parts2LApache-2.030
AVR/ArduinoDSKY
Apollo-Replica
169.9 × 190.9 mm116 parts2LCC-BY-NC-4.019
AVR/ArduinoSparkAltBatteryBoard
fahreddinaykut
58.8 × 29 mm37 parts4LMIT18
AVR/ArduinoDigitalTemperatureController
charlesbaynham
80 × 100 mm163 parts4LNo license14
AVR/ArduinoGP22 RF Photon Correllation
100 × 100 mm116 parts4LNo license11
AVR/ArduinoTapecart sd vertical
45.4 × 50 mm33 parts2LMIT4
ESP8266Endev v1.1
sophiayduan
36 × 70 mm59 parts2LMIT1
AVR/ArduinoAtmega32
George-Emad31
97.5 × 58 mm43 parts4LNo license0
AVR/ArduinoOpen wound
akornsys-rdi
45.1 × 26 mm23 parts2LGPL-3.00
AVR/ArduinoArduino mini
anxndsgn
21 × 21 mm14 parts2LMIT0
AVR/ArduinoEasyduino Atmega
Hanqaqa
68.8 × 53.6 mm35 parts4LCERN-OHL-P-2.0746
AVR/ArduinoEasyduino Atmega Nano
43.4 × 18 mm30 parts4LCERN-OHL-P-2.0746
The ATMEGA328P-A in open source designs
The gallery holds 14 open source boards using the ATMEGA328P-A from 13 GitHub repositories; a typical one measures about 52.1 × 55.8 mm and carries around 38 components.
57% are two-layer designs, the rest use four layers or more, and 64% carry an open source license.
The most starred is Easyduino Atmega by Hanqaqa.
Parts used alongside the ATMEGA328P-A
Microcontrollers on boards using the ATMEGA328P-A
What boards using the ATMEGA328P-A are built for
ATMEGA328P-A: common questions
Where can I find a ATMEGA328P-A reference design?
Each of the 14 boards on this page is a real design using the ATMEGA328P-A. 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 ATMEGA328P-A?
The AMS1117-3.3, CH340C, 4050, FT232RL and ISO7242 appear in the most repositories here.
Which microcontrollers do boards using the ATMEGA328P-A use?
Most are built on AVR/Arduino (12) and ESP8266 (2).
How big is a typical board using the ATMEGA328P-A?
The median is 52.1 × 55.8 mm, and 57% are two-layer designs.
What is the most popular open source board using the ATMEGA328P-A?
By GitHub stars, Easyduino Atmega by Hanqaqa, with 746 stars.
Can I simulate one of these boards using the ATMEGA328P-A 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.