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Arduino Bluetooth Car
Make a swimming Robo-Snake
Wireless camera + Parabolic Mirror
Wireless Power Transfer (Simple and Fast Way)
Easy Wireless Electricity
Wi-Tricity (Wireless Electricity)
RC Truck to Arduino Robot w/ multiple sensors
How to make a Makeblock Small Tank with Ultrasonic Sensor
Hacking Automotive Ultrasonic Sensors
Ultrasonic Ping with Arduino (Basic)
Improve Ultrasonic Range Sensor Accuracy
Make An L.E.D Emblem Light!
Small Arduino CNC
Top secret: Control a hidden usb port with a magnet!
How to Make a Stable Toothpick Structure
Six wheeled All Terrain Vehicle (6WD)
Make a Bracelet From a Phone/Ipod Cord