DIYTech LabsScience Experiments & DIY Electronics Tutorials
By Rahib Ali · Founder, DIYTech Labs
This is the home of the hands-on science experiments and DIY electronics projects that started DIY Tech Pro in 2017. Each tutorial explains how something works, then walks you through building or testing it yourself with cheap, easy-to-find parts. The guides below are kept accurate and maintained by DIYTech Labs.
Electric Circuit: A Simple Concept Explained
What a circuit really is, how voltage, current and resistance relate through Ohm's Law, and a first LED circuit you can build with two batteries.
How to Test 18650 Lithium Batteries Safely
Rescue cells from old laptop packs the careful way: measure voltage, run a capacity test, and know exactly when a cell must be recycled.
Make a 3.5mm Headphone Splitter
Wire one stereo plug to two sockets so two people can listen to the same phone, with a troubleshooting guide for hum and one-sided sound.
Make a Laptop Keyboard Backlit for Under $1
Light up an older laptop keyboard, like the ThinkPad X201, with a bendable USB LED, and see how it compares with the pricier alternatives.
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