r/microcontrollers
28k members
r/microcontrollers is a subreddit with 28k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses microcontroller, esp32, programming, arduino, and project, and they frequently recommend/review microcontroller and ide.
Popular Themes in r/microcontrollers
#1
Solution Requests
: "Need help with hall sensors"
9 posts
#2
Advice Requests
: "Need advice on what microcontroller to use"
4 posts
#3
Ideas
: "Streaming ESP32-CAM images via MQTT, is it cool idea or total overkill?"
3 posts
#4
Pain & Anger
: "Feeling down after failing two club interviews"
1 post
Popular Topics in r/microcontrollers
#1
Microcontroller
: "Need advice on what Microcontroller to use"
142 posts
#2
Esp32
: "Gesture-Controlled Air Mouse Using Esp32-S3 and Onboard IMU"
53 posts
#3
Programming
: "RP2350 development workflows: ARM vs RISC-V Programming with PIO examples, using Linux, showing SDK, Arduino, MicroPython and VS Code."
37 posts
#4
Arduino
: "I made a LED Hourglass using Arduino"
24 posts
#5
Project
22 posts
#6
Help
15 posts
#7
Sensor
: "What microphone should be used with KCX-BT002"
13 posts
#8
Controller
: "Old arcade machine Controller"
12 posts
#9
Pic
: "I created an Android app to program Pic Microcontrollers with the K150 programmer using OTG!"
11 posts
#10
Mcu
: "Identify Mcu - SO16, Pin 1 = VCC, Pin 16 = GND - Suspect Cheap Chinese Mcu"
10 posts
Products Discussed in r/microcontrollers
Microcontroller
29 reviews
#1
Espressif
4.6★ from 5 reviews
#2
ESP32
4.3★ from 3 reviews
#3
STM32
4.0★ from 3 reviews
Ide
6 reviews
#1
Keil
5.0★ from 1 review
#2
IAR
5.0★ from 1 review
#3
OpenOCD
4.0★ from 1 review
Member Growth in r/microcontrollers
Yearly
+6k members(26.6%)
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About
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Last updated: September 6, 2026