Published on Jan 02, 2017


Cellular through remote control switch implies control of devices at a remote location via circuit interfaced to the remote telephone line/device by dialing specific DTMF (dual tune multi frequency) digits from a local telephone.

Description of Cellular Through Remote Control Switch

This project Cellular through remote control switch has the following features

1. It can control multiple load (on/off/status each load)

2. It provides you feedback when the circuit is in energized state and also sends an acknowledgement indicating action with respect to the switching on of each load and switching off of all loads (together).

It can selectively switch on any one or more loads one after the other and switch off all loads simultaneously


1. Dial the Phone Number - a OK tone produced
2. Password - 4321

3. Load number - 1, 2, 3, 4
4. Control number - 9/on, O/off, # / status