This thesis describes the whole process of development and optimization of a measuring system, that consists of microcontroller with Bluetooth connectivity, its periphery and power supply and is connected to the target sensor. The measuring system will be placed into a very confined space, while having only 230 V of network voltage available for power supply. From the development point of view this presents a significant challenge because we also have to place a powerful enough AC/DC converter into this confined space.
Development was split in several phases. First phase was selection of the right type wireless technology then selection of appropriate Bluetooth module of system on chip, followed by development of first program and assembly of prototype system on development board, development and testing of power supply circuit and last but not least, development of printed circuit board (PCB) and final adjustment and optimization of program. Additional step was an upgrade of the PCB and program for a newer version of sensor.
The result of this work is a working compact and reliable measuring system, supplied from 230 V of network voltage and is compatible with all devices supporting Bluetooth 4.0 standard. It satisfies all initially set requirements.