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Device control through SMS


  1. Device control through SMS

    Control your home appliances through SMS. The user can control 4 relays through SMS. Every message is acknowledge with the status. Also the user can control the loads by giving a missed call.
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Features of this project.
1. AVR Atmega8 based design
2. Can control 4 relays
3. Password protected
4. Every SMS was acknowledged.
5. Each relays have status LED.
6. Can control any devices through missed call.
7. Sim300 modem.

SMS Commands

8051projects –It’s the default password for storing the mobile number
Status –To get the status of the loads
Relay1 on – To switch ON relay 1
Relay1 off – To switch OFF relay 1
Relay2 on – To switch ON relay 2
Relay2 off – To switch OFF relay 2
Relay3 on – To switch ON relay 3
Relay3 off – To switch OFF relay 3
Relay4 on – To switch ON relay 4
Relay4 off – To switch OFF relay 4
All on - To switch ON all relays
All off - To switch OFF all relays
Dial number –Its used for getting balance and other ussd functions. For ex if the sim card on the gsm modem is BSNL and to get balance use this command Dial *123#
Call x –Where x is number from 0 to 5, and its used to do if you give missed call.
Call 0 –To get the device status when you give a call
Call 1 –Toggle relay 1, when you give a call.
Call 2 –Toggle relay 2, when you give a call.
Call 3 –Toggle relay 3, when you give a call.
Call 4 –Toggle relay 4, when you give a call.
Call 5 –Switch OFF all relays, when you give a call.