This project demonstrate the design and development of a Home Automation System Using RF Transceiver controlled by Arduino Micrcontroller. The user will remotely control various indoor appliances such as bulbs, doors and fans using Radio Frequency (RF) transmitter and receiver in home automation systems.

The design of the project is divided into two parts i.e. Transmitter and Receiver.

Step 1: Project Components

Transmitter Circuit

Sparkfun Red Board Programmed With Arduino - (Qty-1) - https://www.sparkfun.com/products/12757

Breadboard - (Qty-1) - https://www.sparkfun.com/products/112

Grove - 433MHz Simple RF link Transmitter Module - (Qty-1) - http://www.seeedstudio.com/depot/Grove-433MHz-Simp...

Mini Push Buttons - (Qty-6) - https://www.sparkfun.com/products/97

Buzzer - (Qty-1) https://www.sparkfun.com/products/7950

Green LED (Qty-1) - https://www.sparkfun.com/products/9592

Resistors (1kOhm) (Qty-7)

Circuit Wires (Red, Green, Blue)

Receiver Circuit

Sparkfun Red Board Programmed With Arduino - (Qty-1) - https://www.sparkfun.com/products/12757

Breadboard - (Qty-1) - https://www.sparkfun.com/products/112

Grove - 433MHz Simple RF link Receiver Module - (Qty-1) - http://www.seeedstudio.com/depot/Grove-433MHz-Sim...

L293D Motor Driver IC - (Qty-1) - https://www.sparkfun.com/products/315

USB Micro-B Power Shield (Qty-1) - http://www.adafruit.com/products/1833

Buzzer - (Qty-1) https://www.sparkfun.com/products/7950

Green LED (Qty-4) - https://www.sparkfun.com/products/9592

Red LED (Qty-1) - https://www.sparkfun.com/products/9590

Resistors (1kOhm) (Qty-4)

Hobby Motor (Qty-2) https://www.sparkfun.com/products/11696

Circuit Wires (Red, Green, Blue)

Step 2: Transmitter Circuit on Breadboard

Step 3: Transmitter Circuit Diagram

Transmitter: It consists of micro-controller interfaced with RF transmitter. The user will provide the commands such as BULB ON/OFF, FAN ON/OFF and DOOR OPEN/CLOSE using push buttons. Each button is marked with a label showing its intended function. Upon data transmission, an LED indicator will blink showing that the data is successfully transmitted to the receiver.

Step 4: Transmitter Arduino Source Code

rfcmdsystemtrans.ino
Download

Step 5: Receiver Bread Board Design

Step 6: Receiver Circuit Diagram

Receiver: It will consist of micro-controller and the RF receiver. There will be only one receiver in this project. Upon message reception from the transmitter, micro-controller will be programmed to first check the accuracy or integrity of data. Once valid, micro-controller will check the message. If the message corresponds to respective function, then a proper actuator will be initialized to perform that particular action. The receiver consists of LED bulbs, FAN and the DC motor for opening and closing the door.