GSM Based Home Automation Using Atmega

GSM Based Home Automation

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.
GSM Based Home Automation
1. Control your home electrical appliances
2. Send Simple “(FNNN)” SMS from your phone to control your devices.
3.  You can get current status by sending “(S)” message to it.
4. Uses Standard GSM Modem. 
5. Low Cost.
Step 1: 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
Step 2: Circuit Design and PCB Manufacturing
Download Requires Files
1. Download pdf Complete Circuit Diagram
Schematic GSM Based Home Automation
4. Download pdf Component Placement Diagram
5. Assemble components using above files.
Step 3: Programming the controller
Download Hex File
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. Follow us on Google+
4. You Did it Yourself
5. Refer Tutorials from this site for more understanding of code and Circuits

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