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iPhone Flies on a Rocket: Collect and Analyze Data!

iPhone Flies on a Rocket: Collect and Analyze Data!

It was a beautiful fall morning as I carefully packed the parachute, slid in the engine, and installed the igniter in my model rocket. I started the data collection program and slid the payload with a TI Bluetooth low energy SensorTag and an iPhone 4s into the payload bay. Yes, an iPhone. My wife’s iPhone. […]

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Operating Railroad Grade Crossing Signal

Operating Railroad Grade Crossing Signal

It seems that no matter how much things change, one thing that is always constant is a kid’s fascination with all things trains. When my son was about 4 years old he was fascinated by passing trains. Even more captivating to him was the railroad crossing signals which would flash and ring to announce a […]

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Fetch-O-Matic: Automatic Ball Launcher

Fetch-O-Matic: Automatic Ball Launcher

[youtube http://www.youtube.com/watch?v=V9UOcUKazSA?wmode=opaque] Several years ago I watched a viral YouTube video that starred Jerry the Dachshund, whose engineer owner had built him his very own automated ball launcher. I had two dogs at the time, and was also unemployed with some time on my hands, so I decided to try my hand at building one. […]

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