Beat the summer heat with a pet-like cooler that follows you around

Two engineers of Hacker House created an autonomous 'Follow Me Cooler' that you can DIY. It uses Bluetooth to create GPS coordinates so it can follow you around or make its way to a friend across the park. If you're up for the challenge, you can build one of these yourself. It requires an Arduino Uno, some off-the-shelf hardware, and a bit of engineering background.  Read more...