Retro Wireless Handset
Add Bluetooth to an old phone.
LED
Dummy Camera
Use a 555 timer to make an LED blink like the one in a security camera.
Soft-Circuit LED Bracelet
Use conductive thread and LEDs to make a lighted cuff.
Electronic Origami
Mix paper-folding with simple electronics to make fun art.
PIR Sensor Arduino Alarm
Build a motion-sensing alarm with a PIR sensor and an Arduino microcontroller.
Garduino: Geek Gardening with Arduino
Create an automated watering, light, and temp control system.
Electronic Embroidery
Stitch a high-tech wall hanging that doubles as a nightlight.
