This system has been developed to help old/disabled people answer their door. Using a wireless keypad, which hangs around their neck, they can use it anywhere in the house to unlock the door or send a message to the person standing outside. The system also allows the person waiting at the door to enter a code on a keypad and enter straight away.
PA Consulting Group challenged schools, universities and inventors to use the Raspberry Pi to make the world a better place.
Winners of the competition will be announced March 20 at PA’s Cambridge Technology Centre.