Many manufacturers have been switching from mechanical to electrically activated door handles, causing a headache for owners ...

Magnetic strips on some classroom doors at two Hardin Valley schools prevent them from automatically locking. In a recent school security breach, a former student entered classrooms at the elementary ...

Abstract: This paper presents the design and implementation of a multipurpose networked control system using Arduino and Modbus RTU over RS-485 communication. The system enables robust and scalable ...