Smart Home Interface using GSM and IOT

Project description:

1. App Inventor: App Inventor allows Android Apps to be built and has building blocks which are easy to understand and implement. There are 2 steps, first you need add interfacing elements to the application such as buttons, images and sounds. Then secondly, you need to add logic and actions with plain language instruction blocks that will snap together like building blocks. You can use MIT App Inventor for this.
2. Arduino IDE: The open source Arduino environment that makes it easy to write and implement the code onto the board. Arduino programs are written in C or C++ language. It also has features such as syntax highlighting, brace matching and automatic indentation.
3. GSM: GSM (Global System for Mobile Communications) is a standard developed to describe protocols for a second generation digital cellular networks used by mobile phones. SIM-900 GSM module will be used for this project. It is a type of modem that accepts a SIM card and operates over a subscription to a mobile operator, just like a mobile phone. It will be capable of sending and receiving SMS & MMS messages.
4. Arduino Uno: The Arduino UNO board contains ATMEGA 328 microcontroller. The Atmel ATMEGA 328 is a 8 bit AVR RISC based microcontroller that combines 32KB ISP flash memory with read-while-write capabilities, 1 KB EEPROM, 2 KB SRAM, 23 general purpose I/O lines, 32 general purpose working registers.

Project Implementation:

1. The Android App that you build will have 2 screens – Splash screen and Device Control Screen
2. In the splash screen, you need to enter the correct password to enter the device control screen
3. Then, it will prompt you to enter the mobile number which you have integrated with the system
4. You can check the check box to make any device ON and OFF
5. Then the application will exchange the ASCII data through SMS based on your response
6. The microcontroller receives data through GSM modem in the form of SMS and the ‘SBUF register’ reads this ASCII characters as equivalent Hex value which is ported to the digital pins of the Arduino
7. Based on the programming logic, the microcontroller on receiving the equivalent Hex value through serial register will make the corresponding digital pin to high and thereby making the relay in ON/OFF condition

Software requirements:

1. You will be needing Arduino IDE software to write and upload the programming logic onto the Arduino Uno board
2. Also, you need to create an account in the ThinkSpeak IoT platform to integrate the system onto the cloud and store the data online

• GSM
• Arduino Uno
• ESP-8266

• GSM
• IoT
• Smart Systems