Summary of GSM Based Home Automation
This article outlines a low-cost GSM-based home automation system enabling appliance control via SMS. The project utilizes an ATmega8 microcontroller paired with a SIM300/GSM modem to interpret commands like "(FNNN)" for switching devices and "(S)" for status checks. It includes circuit diagrams, PCB layouts, and programming files for assembly.
Parts used in the GSM Based Home Automation:
- Atmega 8 Microcontroller
- Relays
- ULN2003
- LM7805
- BC548
- 1K Ohm Resistors
- GSM Modem (SIM300 or SIM900)
- Buzzer
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).
Features:
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.
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
1. Atmega 8 Microcontroller
2. Relays
3. ULN2003
4. LM7805
5. BC548
6. 1K Ohm Resistors
7. GSM Modem (SIM300 or SIM900)
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
Download Requires Files
1. Download pdf Complete Circuit Diagram
4. Download pdf Component Placement Diagram
5. Assemble components using above files.
5. Assemble components using above files.
Step 3: Programming the controller
Download Hex File
Download Hex File
For more Detail: GSM Based Home Automation
- How do I control home electrical appliances?
You can control your home electrical appliances by sending simple SMS messages. - What command should I send to switch on a device?
Send the message format (FNNN) from your phone to control the devices. - Can I check the current status of my devices?
Yes, you can get the current status by sending the (S) message to it. - Which microcontroller is used in this project?
The project uses an Atmega 8 Microcontroller. - Does this system use a standard GSM modem?
Yes, it uses a Standard GSM Modem such as SIM300 or SIM900. - What components are needed to assemble the circuit?
You need a microcontroller, relays, ULN2003, LM7805, BC548, resistors, a GSM modem, and a buzzer.


