Arduino-Controlled Night Light
Using a light sensor, some wire, and LEDs you can easily create an automatic night light that will turn on when you turn off the lights.
9V
Mini R.O.V. Submersible
This is a great, easy project! This project is also a first prize winner in the 2012 Instructables Robot Contest! This little submersible uses 3 DC motors and a nine-volt battery. It controls the three motors with three buttons. Its frame is built from lego-type pieces. It is very simple and great for beginners, although […]
Turn Your Old Speakers into New
If you have an old computer speakers, you can turn them into speakers for phone or MP4.
Treasure Finder
Who hasn’t dreamed about owning their own metal detector and searching for buried treasure, or at least a few dropped coins? In this project, we will build a metal detector based on a dual oscillator circuit. One oscillator is fixed, and the other varies depending upon the proximity of metal objects. The beat frequency between […]
Wearable Light Organ
This simple, wearable circuit uses an operational amplifier (or “op-amp”) chip to convert sound into light. An LM324 op-amp and a transistor boost input from a mini condenser microphone to light a series of LEDs. Watch it blink to the beat of your favorite music. Check out more Weekend Projects.
Simple Laser Communicator
Talk in secret over your own private laser beam link.
The Luna Mod Looper
The Luna Mod is an easy and fun instrument that will have you making great-sounding loops in no time. Rather than sampling input like a traditional loop station, the Luna Mod synthesizes its own sounds, and you play it using two knobs and one button.
