DTMF Based Load Control System Using 8051 - Circuit Diagram, Working Process, Require Components, Code & Step by Step Connections Explanation.
Complete project video tutorial - http://courses.electronicshub.org/p/dtmf-based-load-control-system-using-8051
Project source - http://www.electronicshub.org/dtmf-controlled-home-automation-system-circuit/
