SMS controlled digital display system

Digital Display Systems (DDS) are used to give message/information and notice, often in real-time. The message/information is changed or updated as the need arises. Traditionally, experts manually change/update information on DDS by reprogramming its memory. The work presented in this paper shows that the ubiquitous GSM network could be exploited for automated real-time update of DDS memory via mobile phone SMS (text messaging) services. The aim is to make DDS update flexible and location and person independent.