Bluetooth is a huge commercial success but so far hobbyists and lab workers have been barred from access to ready-made modules for this wonderful new medium. The reason is simple: manufacturers like to treat their products as black boxes and are only interested in their 100-k/day production lines in the Far East or China. We oppose this attitude by publishing this article, written using the motto: Bluetooth modules for everyone! A tracking robot does the trick.Flick through any electronics magazine – professional or hobbyist – and you will see a wide range of single-board computers and microcontroller boards. For many applications, they make product development so much simpler than it used to be, say, 5 or 10 years ago. Attach a few auxiliary components and a control panel, write the computer program, and you’re finished.