Skip to content

r/microcontrollers↗

Microcontroller hardware and software projects and news

28k subscribers22 posts / mo in Sep 202622 authors / mosince 2008

r/microcontrollers has 28k members (+24% over the last 12 months). It gets about 22 posts a month from 22 people. Top topics: ESP8266 Projects, RISC-V Linux and Raspberry Pi Projects.

Free report

When to post on r/microcontrollers

You've used today's free reports

Visitors without an account can open 3 subreddit reports a day. The best time to post on r/microcontrollers, removal risk and the rest of the report are one step away.

Size and growth

How r/microcontrollers has grown

r/microcontrollers

Subscriber growth

Subscribers over time

+24%in 12 months · +3.0% in 3 months · +1.4% in 1 month
Sep 202628k
Growing28k subscribers
Data since Mar 2018Live · through Sep 2026
r/microcontrollers

Monthly activity

Posts, comments and authors per month

−50%vs Sep 2025 · −35% last 3 months vs the 3 before
Sep 202622
QuieterPeaked at 70 in Mar 2024
Data through Sep 2026 · October usually lands mid-November

What people talk about

Topics and brands on r/microcontrollers

Top topics

Share of the subreddit's posts

  1. ESP8266 Projects1.2%
  2. RISC-V Linux1.2%
  3. Raspberry Pi Projects0.7%
  4. QMK Firmware & Split Keyboards0.5%
  5. Car Hacking0.3%

Brands people mention

Most-mentioned brands and sites, last 12 months

  1. Microchip Technology
  2. STMicroelectronics

The full report

Everything else about r/microcontrollers

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