| Power a lamp or heat a mug — no wires needed. This project transfers 20 W through a 5 cm table using 50 kHz electromagnetic resonance. A mic...
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| Check out this simple GPS clock that always shows the right time. Built with an ATmega328P and an LED matrix, it’s easy to assemble — even o...
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| How can you remotely control home heating? Here’s an SMS remote control system using the mobile network, featuring relay outputs and a tempe...
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| If your car uses a manual gearbox, you can save fuel and keep exhaust emissions to a minimum if you don’t overrev your engine. A shift light...
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| A shift light helps manual drivers save fuel and reduce emissions by signaling the best time to upshift. It’s easy to add to almost any car...
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| Current signals of 4-20 mA are commonly used in industrial applications to transmit process signals to controllers. Compared to analog volta...
| Take your SMARS Robot to the next level! Learn how to add OLED, RGB LEDs, a buzzer, and Bluetooth connectivity with step-by-step guidance.
| Upgrade your SMARS Robot with OLED, RGB LEDs, and a buzzer! Follow my guide for circuit design, 3D printing, and custom Android app control.
| Camera lights with adjustable color for smartphones can be expensive, so building your own is worth the trouble. Also, by making one yoursel...
| Many motorists have used a parking disk. This project presents a digital version based on an e-Paper display. The design has special feature...