This master thesis gives an overview of long-distance communication in ad hoc networks. Flashing and debugging of microcontrollers with the ST-LINK/V2 de- bugging adapter will receive special attention. A serial adapter is still required for communication via the serial interface from the computer to a microcontroller. The structure of the hardware can be seen in the graphic representation in Figure 6.4. The overarching goal of this master thesis is to implement a firmware for the LoRaWAN technology that is suitable for the STM8L051F3 microcontroller and, in the long term, to realize transmission between two microcontrollers via LoRa transmission. For this purpose, after detailed literature research, AT commands should first be sent via two Raspberry Pis via remote access and then a flashing of both LEDs on the HIMO-01M module should be implemented and explained in detail. A firmware for a similar microcontroller is to be tailored for the STM8L051F3 microcontroller. The detailed documentation and analysis of the procedure should be given special consideration. The author hopes that this will create a basis for later projects in which alternatives to the ALOHA protocol are to be found in order to avoid collisions and improve performance in future projects. Furthermore, this work should empha- size the advantages and relevance of the LoRaWAN technology and thus create an incentive for future students to consider this topic further.