Open source arduino projects
Every project in the registry tagged arduino, ranked by real GitHub adoption.
Open-source vacuum robot cleaner
Your Gateway to Embedded Software Development Excellence :alien:
MQTT gateway for ESP8266 or ESP32 with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, Bluetooth, beacons detection, mi flora, mi jia, LYWSD02
Infrared remote library for ESP8266/ESP32: send and receive infrared signals with multiple protocols. Based on: https://github.com/shirriff/Arduino-IRremote/
💡 ESP8266 framework for Homie, a lightweight MQTT convention for the IoT
ESP32 HomeKit Lock with support for Apple Home Key (reverse-engineered)
ESP32‑S3 air‑quality station with LVGL UI, MQTT, Home Assistant
Передача показаний воды по Wi-Fi. Watermeter Wi-Fi transmitter.
PlatformIO development platform for IoT modules
Related tags
Frequently asked questions
How many open source arduino projects are there?
This registry tracks 9 projects tagged arduino, with 34,789 GitHub stars between them. The most-adopted is oomwoo at 12,931 stars.
Are these arduino projects free to use?
Yes — 9 of the 9 carry an explicit open-source licence across 5 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which arduino project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these arduino projects still maintained?
8 of the 9 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.