GSM Based Home Automation

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GSM based home automation, project allows you to control electrical appliances using your mobile phone SMS. It consists of ATmega8 microcontroller, SIM300 GSM modem, Relays.

There are many Home Automation Systems available in our market. Most of these are simple home appliances controlling systems like DTMF controlled home Appliances, IR Remote based home appliances controlling, RF based home appliances controlling. we are going to discuss about GSM based Home/Office Appliances Control (Home Automation System). Here all circuit details with PCB design, Code are provided.

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Step 1: Major Components Required

1. Atmega 8 Microcontroller

2. Relays

3. ULN2003

4. LM7805

5. BC548

6. 1K Ohm Resistors

7. GSM Modem (SIM300 or SIM900)

8. Buzzer

9. Buy Components from our Store

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Step 2: Circuit Design and PCB Manufacturing

Step 3: Programming the Controller

Step 4: Test the Code and Hardware

1. Send SMS "(FNNF)" to circuit, you should observe the relay operation.

2. Send SMS "(G)" and you should get status reply.

3. You Did it Yourself

5. Refer Tutorials from for more understanding of code and Circuits



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