r/arduino is a subreddit with 773k 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 hardware help, look what i made!, getting started, software help, and :beginners-project:beginner's project.
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! š
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
4.0ā
from 6 reviews
#2
Raspberry Pi
3.8ā
from 4 reviews
#3
ATtiny
4.0ā
from 2 reviews
Ide
15 reviews
#1
Arduino
4.2ā
from 5 reviews
#2
Microsoft
4.8ā
from 4 reviews
#3
Acer
2.0ā
from 1 review
Simulation Software
10 reviews
#1
Tinkercad
4.5ā
from 2 reviews
#2
LTSpice
4.5ā
from 2 reviews
#3
Falstad
2.0ā
from 1 review
Flair Used in r/arduino
#1
Hardware Help
: "Would soldering fix it?"
13 posts
#2
Look what I made!
: "Desktop friend"
11 posts
#3
Getting Started
: "How to start coding in Arduino IDE?"
3 posts
#4
Software Help
: "Help with connecting Arduino Opta with Weintech HMI MT802iP via Modbus/TCP"
3 posts
#5
:Beginners-Project:Beginner's Project
: "ARGB lights with Arduino"
2 posts
#6
:ESP32-DevKit: ESP32
: "I crammed an arduino sketch with a 69k-word dictionary, the CIA World Factbook, 11,814 go problems, and a real star chart into a Watchy (ESP32, 4MB, e-ink)"
1 post
#7
:ArduinoUno: Monthly Digest :ArduinoUno:
: "Monthly digest for 2026-06"
1 post
#8
:Arduino_Uno_R4: Uno R4 Wifi
: "Touchscreen shield that will work with Elegoo Uno R4 WiFi?"
1 post
#9
School Project
: "Iām preparing for a landslide sensor project, and I need some help"
1 post
#10
:ArduinoUno: Uno
: "Issues with distance readings with my HC-SR04 Ultrasonic sensor"
1 post
Member Growth in r/arduino
Yearly
+59k members(8.3%)
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Last updated: July 9, 2026