Month: April 2010

April Fools’ Arduino alarm

April Fools’ Arduino alarm

After we put the kids to bed last night my wife and I realized we needed to set up some April Fools’ Day pranks. So I built this motion sensing alarm and tucked it into the shampoo bottle recess in the shower. When the kids entered the bathroom they got an earful of beeping piezo buzzer for their troubles!

How-To: Build a Model Hubble Telescope

I can’t wait to make one of these model Hubble Telescopes that are featured on the Hubble web site. There are three versions: a PVC pipe version, a basic paper model version, and an expert paper model version that even includes the internal structure of the telescope. Why not host a little Hubble-building party with […]

Email-Counting Shirt

Matt Mets @ Make: Online writes: Chris and Madeleine Ball wrote in to share their email-counting t-shirt. Using some parts that they got from the Sparkfun Free Day, they added an LED display to the front of the shirt, that displays a count of the user’s unread email. An Android phone continuously checks the user’s […]