When he is not in class at the Rift Valley Institute of Technology in Nakuru County, Kelvin Mwaniki is at his Karagoini rural home in Nyandarua County, roaming the village and knocking on the doors of his neighbours in search of dead electronic devices.
He uses such devices in building a smart security system, an innovation that has taken him places, including Sweden where he won an award in the Security Devices Innovation Category last year.
