That said, it’s pretty easy to build using an Arduino, a GSM shield, a GPS system, and a handful of other components. The whole system is strapped and locked to the bottom of the saddle.

The code for [Karman]’s GPS cube uses the TinyGPS library for Arduino, that has a few great functions that track the number of satellites visible and report the current time.

Over the last decade, the open-source movement has not only transformed the world of software, but also catalyzed a sweeping revolution in hardware tinkering. At the heart of this shift lies a ...

Using a GPS receiver, an OLED display, a database of red light cameras, and an Atmega with a Arduino bootloader, Dave created a simple system that alerts him when he's near a red light camera. It ...