This design for an external adapter lets you use a computer power supply without modifying it.
Salvage the piezo from an old toy and use it to build a small contact microphone that can be used to amplify acoustic instruments.
Holonomic robots are cool.
Learn this simple hack to start adding your own sensors to the your Mindstorms system.
With the Vinyl Digitizer Phono Preamp, you can "dub" records onto your computer and convert the sound files for your phone, MP3 player, car, or anywhere else you need music.
Build this simple rolling Mini Tank to learn how to combine Arduino microcontrollers with Lego Mindstorms robotics.
Build $10 panniers from 5-gallon buckets.
Using a basic digital camera and photo software, you can produce a large high-resolution macro image with a long depth of field.
Use the power of Lego Mindstorms and a Raspberry Pi to digitize and vocalize books.
Build this battle-tested rig to launch, track, and recover a high-altitude balloon that will carry your hacked Canon camera to the stratosphere. With this setup using APRS ham radio and the Trackuino — an Arduino-based communications board — any hobbyist or science class can photograph (and video) the Earth against the blackness of space, and bring these amazing images home to share.
When you launch a rocket, you need that big red button.
What's under your stairway?
