r/arduino is a subreddit with 784k members. The community frequently discusses arduino, struggling, project, esp32, and hard time, and they frequently recommend/review microcontroller, ide, and simulation software, and the most common flair used is look what i made!, hardware help, :beginners-project:beginner's project, :ardsnuino: project update! , and :games: games.
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! 😉
Popular Topics in r/arduino
#1
Arduino
220 posts
#2
Struggling
63 posts
#3
Project
40 posts
#4
Esp32
30 posts
#5
Hard Time
28 posts
#6
Sensor
23 posts
#7
Code
17 posts
#8
Motor
17 posts
#9
Frustrating
16 posts
#10
Help
16 posts
Products Discussed in r/arduino
Microcontroller
19 reviews
#1
Arduino
4.0★ from 6 reviews
#2
Raspberry Pi
3.8★ from 4 reviews
#3
ATtiny
4.0★ from 2 reviews
Ide
15 reviews
#1
Arduino
4.2★ from 5 reviews
#2
Microsoft
4.8★ from 4 reviews
#3
Acer
2.0★ from 1 review
Simulation Software
10 reviews
#1
Tinkercad
4.5★ from 2 reviews
#2
LTSpice
4.5★ from 2 reviews
#3
Falstad
2.0★ from 1 review
Flair Used in r/arduino
#1
Look what I made!
: "A little Teensy4.1 project I've been working on"
57 posts
#2
Hardware Help
: "Remote-controlled submarine problem"
33 posts
#3
:Beginners-Project:Beginner's Project
: "HARDuino // The official troll Arduino framework"
11 posts
#4
:Ardsnuino: Project Update!
: "Project update: My ESP32-controlled guitar robot can now play in two modes"
8 posts
#5
:Games: Games
: "GTA 6 hype is everywhere… so I made GTA run on an ESP32."
4 posts
#6
Getting Started
: "Ä° have a question"
3 posts
#7
School Project
: "Why is my Arduino solar tracking not going up and down?"
3 posts
#8
Software Help
: "Anyone know a good code to detect double buttons press?"
3 posts
#9
:ATtiny85: ATtiny85
: "I have finally learnt how to use my UNO R3 as an ISP for an ATtiny85. Now I can easily upload sketches to ATtiny85, then use a breakout board with a user programmable LED on pin PB1."
2 posts
#10
:LightBulb:Project Idea
: "i want to build a small sonar that can be carried underwater (to a very good depth lets say a 100m (minimum-atleast)"
2 posts
Member Growth in r/arduino
Yearly
+61k members(8.4%)
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Last updated: September 8, 2026