r/arduino
Founded July 2008 · Public — anyone can post
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! 😉
Members
788,745
789K
Online now
—
not captured in the last snapshot
Posts per day
16.1
from the last 100 posts, spanning 6.2 days
Comments per post
—
no sample yet
Growth · 7d
—
not enough history yet
Growth · 30d
—
not enough history yet
Promo tolerance
—
not assessed yet
Last post
Oct 21
sampled Oct 21
Distinct posters
87%
of the last 100 posts
Tracking since Sep 14 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
Similar by content
Communities that discuss what r/arduino discusses.
This subreddit is dedicated to both amateur and professional engineers that want to build cool stuff at home, challenge themselves to learn new technologies, learn from each others' designs, and showcase their side projects.
A place to ask questions, discuss topics and share projects related to Electrical Engineering.
#Friendly reminder: Please don't just post pictures of unused pis - [do a project!](https://www.reddit.com/r/raspberry_pi/search?q=flair%3Atutorial+OR+flair%3Ashow-and-tell&restrict_sr=on&sort=relevance&t=all) [Complete r/raspberry_pi Rules](https://www.reddit.com/r/raspberry_pi/about/rules/) ### [Check the FAQ and Helpdesk here](https://old.reddit.com/r/raspberry_pi/about/sticky) **Pi project ideas:** [There's a huge list right here on this sub!](https://old.reddit.com/r/raspberry_pi/search?
###[Read the rules before posting!](http://www.reddit.com/r/robotics/wiki/rules) ###[How to get started in robotics](https://www.reddit.com/r/robotics/wiki/get_started) ###[See the Wiki for frequently asked questions, career advice, resources, and previous AMAs](https://www.reddit.com/r/robotics/wiki/index) ###[Official Discord Server](https://discord.gg/sbueZeC) ####For any question, please post on our sister subreddit /r/AskRobotics. ---------------- #### This subreddit is a place for
See the full lists on similar subreddits.
r/arduino — frequently asked
How many members does r/arduino have?
r/arduino has 788,745 members as of our most recent crawl on Oct 21. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/arduino growing?
We don't have 30 days of snapshot history for r/arduino yet, so we're not going to invent a growth number. We've been tracking it since Sep 14; the chart fills in as history accumulates.
How active is r/arduino?
Around 16.1 posts per day, measured from the newest 100 posts on Reddit, which span 6.2 days. Posting rate matters more than subscriber count when you're deciding where to spend your time — it determines how long your comment stays visible.
When was r/arduino created?
r/arduino was founded in July 2008 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.
Who posts in r/arduino?
Of the last 100 posts we sampled, 87% came from distinct accounts; the newest was published Oct 21. A low share means a feed dominated by a handful of accounts (bots, mods, or one prolific poster) rather than a community.
Can I promote my product in r/arduino?
We don't have a promo-tolerance read for r/arduino yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.
How do I monitor r/arduino for mentions?
Hit Watch on this page. Prowlo starts crawling r/arduino into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/arduino's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/arduino's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
Read-only · Human-in-the-loop
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