Today, more and more manufacturers offer complete solutions for home automation, including both software and hardware. These systems are very reliable, very robust and very expensive. For the latter, Budapest University of Technology and Economics, Department of Telecommunications and Media Informatics came up with an idea to offer a cheaper alternative within a form of a university project. That project resulted in a combination of Atmel ATmega328P type microprocessor and an nRF2401 radio module, including the necessary circuit. It was given the SmartSwitch nickname. Although the resulting device was much cheaper than others on the market, it was much more limited in its resources. For this reason, it was impossible for it to use the same communication protocols as its competitors. This meant that for a working solution it was inevitable to develop an own protocol that has at least the basic functionalities that others have on the market.
In this thesis, through the history of home automation we get to a point of understanding the solutions offered today, so we can clearly apprehend the requirements that a modern multi-hop communication protocol have to satisfy. After this we go through all the design criteria, then there comes the implementation, which is the proof of concept. This is followed by the analysis of the implementation, as well as the protocol itself and further development potentials. Finally, the achieved results and the possible uses of this document close the thesis.