r/arduino↗
Arduino
An unofficial place for all things Arduino! We all learned this stuff from some kind stranger on the internet. Bring us your Arduino questions or help answer something you might know! 😉
790k subscribers620 posts / mo in Sep 2026 (incl. <1% by known bots)493 authors / mosince 2008
r/arduino has 790k members (+8.1% over the last 12 months). It gets about 620 posts a month from 493 people. Top topics: ESP8266 Projects, IDEs and Editors and Custom Controllers.
When to post on r/arduino
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How r/arduino has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/arduino
Top topics
Share of the subreddit's posts
- ESP8266 Projects1.4%
- IDEs and Editors0.3%
- Custom Controllers0.3%
- 3D Printer Builds0.3%
- RC Servo & Steering0.3%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Adafruit Industries
- Instructables
- Aliexpress
- Tinkercad
- Digi-Key
Everything else about r/arduino
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research