Model No.148: This project works on the principle of DTMF tone command so received from any phone to remotely switch any electrical load such as agricultural pump, domestic and industrial loads etc. A cell phone is interfaced to a DTMF decoder in the system from its audio output socket for receiving tone commands. The receiving cell phone codes are converted into digital commands by using a DTMF Decoder which will identify the frequency of the key and convert that frequency to its equivalent digital code which is then fed to a microcontroller (8051 family).
For complete information about this project, visit http://www.edgefxkits.com/dtmf-based-load-control-system
Edgefx Technologies provides 100% output guaranteed electrical and electronics live project kits for 3rd & final year engineering students. We provide various types of projects like embedded projects, robotics projects, electrical projects and communication based projects and help to thousands of ECE and EEE students in improving their practical knowledge in electronics. For more details, visit http://www.edgefxkits.com