r/TechDIY
7k members
r/TechDIY is a subreddit with 7k members. The most common kinds of discussions are solution requests and ideas, and the community frequently discusses diy, electronics, arduino, 3d printing, and diy projects, and they frequently recommend/review circuit simulator.
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Popular Themes in r/TechDIY
#1
Solution Requests
: "Magic Mirror with Source code"
26 posts
#2
Ideas
: "Fake Window in Basement with LED Plant Growing Lights (X-Post from DIY)"
18 posts
#3
Self-Promotion
: "I made a little boost circuit to get 3.3V or 5V out of a AA battery. It's open source, and also available for preorder."
9 posts
#4
Advice Requests
: "How to Make a Raspberry Pi Smart Mirror [x-post /r/DIY]"
6 posts
#5
Pain & Anger
: "Our air conditioning is broken, so I had to improvise..."
2 posts
Popular Topics in r/TechDIY
#1
Diy
: "Fake Window in Basement with LED Plant Growing Lights (X-Post from Diy)"
58 posts
#2
Electronics
: "Need help with figuring out Electronics"
27 posts
#3
Arduino
: "Want to know how to create a physical knob to control your PC's volume? and also easily control apps like Photoshop, Lightroom, Premiere Pro etc with it? In this quick tutorial I'll show you how you can create a knob using an Arduino and Rotary encoder, to control your PC's volume and other apps."
20 posts
#4
3d Printing
: "A Cardboard Ant vs Aggressive Plastic One. Running out of plastics and having to use another material. What do you think, guys?"
13 posts
#5
Diy Projects
: "I made a string art machine"
13 posts
#6
Raspberry Pi
: "Looking to add USB ports to a Raspberry Pi but all the ports I found are incased in plastic. How do I make a port similar to the one in the pic, is there naked usb hubs available?"
12 posts
#7
Led
: "I made a Led box that lights up to music"
10 posts
#8
Robot
: "I made a Robot that plays Facebook Messenger Basketball, High Score 99 (code in comments) [Project]"
7 posts
#9
Iot
: "Simple Iot"
7 posts
#10
Monitor
: "I need help looking for a control board for my DIY Monitor"
7 posts
Products Discussed in r/TechDIY
Circuit Simulator
2 reviews
#1
Falstad Circuit Simulator
3.0★ from 1 review
#2
123D Circuits
3.0★ from 1 review
Flair Used in r/TechDIY
#1
User Showcase
: "I made a automatic sliding glass door from a old car window motor"
17 posts
#2
Project
: "How to Make a Raspberry Pi Smart Mirror [x-post /r/DIY]"
3 posts
#3
Promo
: "I made a little boost circuit to get 3.3V or 5V out of a AA battery. It's open source, and also available for preorder."
2 posts
Member Growth in r/TechDIY
Yearly
+615 members(9.5%)
Similar Subreddits to r/TechDIY
r/ArduinoProjects
207k members
7.3% / yr
r/diyelectronics
399k members
14.1% / yr
r/maker
74k members
47.1% / yr
r/makers
3k members
35.3% / yr
r/raspberryDIY
48k members
33.1% / yr
About
GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.
This page gives a focused view of r/TechDIY, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: August 9, 2026