r/PCB↗
Printed Circuit Board
Welcome to /r/PCB!
54k subscribers606 posts / mo in Sep 2026475 authors / mosince 2013
r/PCB has 54k members (+109% over the last 12 months). It gets about 606 posts a month from 475 people. Top topics: QMK Firmware & Split Keyboards, ESP8266 Projects and Hotswap Keyboards & PCBs.
When to post on r/PCB
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How r/PCB has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/PCB
Top topics
Share of the subreddit's posts
- QMK Firmware & Split Keyboards0.6%
- ESP8266 Projects0.4%
- Hotswap Keyboards & PCBs0.3%
- PSU Discussions0.2%
- Macropads & Numpads0.2%
Brands people mention
Most-mentioned brands and sites, last 12 months
- TI
- LCSC Electronics
- Digi-Key
- Espressif Systems
- EDN
Everything else about r/PCB
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