Uber Tester
Build a 4-in-1 car wiring diagnostic tool.
Battery
Dummy Camera
Use a 555 timer to make an LED blink like the one in a security camera.
Annie’s Blinking El Wire Eye
A lightwire animation project.
Build a POSC Synthesizer
How to assemble the classic 555-based oscillator kit.
Gyrocar
Add a motor and a track wheel to a toy gyroscope to make it run nonstop and perform tricks.
Arduino Blinking Bike Patch
Add flashing LEDs to your backpack for fun and safety.
Build the Gakken Mini Guitar
This fun kit has a built-in amp, speaker, and line out.