M. Carbajo and M.D. R-Moreno (Spain)
Wireless, low cost, closed environments.
Nowadays, the wireless revolution is gaining acceptance as an alternative to the wired LAN. Although the Wi-Fi technology prices have considerably decreased in the last years, they are still high. This paper describes the design and the implementation of the radio segment for short messages of text visualization system, over several screens in closed environments (i.e. stations, malls or shops). This system avoids cables using the diffusion via radio frequency in the ISM 433MHz band and its cost is considerably lower than in the Wi-Fi technology.
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