r/arduino is a subreddit with 769k 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 software help.
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!
: "Finally Done! Full 8x8 Split Flap Chess board"
68 posts
#2
Hardware Help
: "STM32 LED blinking based on my hand movement"
20 posts
#3
:Beginners-Project:Beginner's Project
: "What should my first project be?"
20 posts
#4
:Ardsnuino: Project Update!
: "17 days after open-sourcing Patternflow — first community pattern, v2 build guide, and the AI gacha problem"
7 posts
#5
Software Help
: "How can i improve my code for my line follower robot?"
4 posts
#6
:ESP32-DevKit: ESP32
: "Hell nah😰 my sister made this for me"
3 posts
#7
Getting Started
: "Advice for beginners"
3 posts
#8
Solved!
: "OLED DIsplay showing fragments"
2 posts
#9
Look what I found!
: "Found on a marketplace"
1 post
#10
Hot Tip!:LightBulb:
: "Arduino certification"
1 post
Member Growth in r/arduino
Yearly
+58k members(8.2%)
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About
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Last updated: June 9, 2026