This thesis is the beginning of the project "Localisation of game tokens on a digital display", starting with the "Analysis and design of an autonomous game token system". It consist in a research about suitable sensors, platform and necessary technologies to design the first prototype of a game token. Mainly, a game token have to be able to gather physical signals displayed by a display -light- and transmit them to the control unit using wireless technology, with the lowest power consumption as possible. This information have to be portable because in further work it would be necessary for doing the localisation of a game token.