Bluetooth® is a wireless technology standard for short distance data exchange. Originally Bluetooth was invented by Ericsson as an alternative for cable-based serial data transfer. Today the Bluetooth Special Interest Group with over 25000 members takes care of the continued development of the technology. Many features, such as easy connection of several devices with control of the synchronization or low power consumption make the Bluetooth technology especially interesting for IoT applications. The ClarinoxBlue Protocol Stack makes the Bluetooth technology accessible for every embedded engineer.