Steve writes "Here's how to make a soda-can Van de Graaf generator. This site contains detailed directions for making a simple Van de Graaf generator with a soda can, some PVC pipe and a few simple everyday components. The site even features a picture of the finished product in action."Link.
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How-To Tuesday: Arduino 101 & the PING))) ultrasonic sensor
The PING))) ultrasonic sensor is a really easy way to measure distance with a micro-controller. All you have to do is hook up 3 wires and upload some code. These sensors are great for robots, alarm systems, or any...
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