In the last post in this series, I elaborated why it is useful to have short distance communication. In this post, we will look at how classic Bluetooth works. Nearly every electronic device today supports Bluetooth. Some people use it more than others. But what exactly is Bluetooth and when is it useful? Let’s see in this post. We will cover only classic Bluetooth and not the latest Bluetooth Low Energy, also called Bluetooth Smart. Continue reading “When devices whisper to each other – Part 2: Classic Bluetooth”