Home Automation System

Android Home Automation project comes with a free application called “SmartHome” . This application controls the various appliances connected to PIC Microcontroller 16f877a and relays. When the toggle buttons on the application are pressed, corresponding bluetooth signals are sent from your android phone to the bluetooth module you have hooked up to PIC Microcontroller 16f877a. The PIC finds out which signal was sent and compares it to the predefined signals assigned for each appliance. When it identifies that signal, then the PIC activates the relay hooked up to its digital pin by passing 5V through it. Thus the relay is switched ON and the corresponding appliance connected to the relay is turned ON as well. To switch it OFF , PIC passes a 0V or logic low to its digital pin.