Controlling Multiple Appliances with a TV Remote

GROUP MEMBERS SARAH KHAN SAMIRA SIDDIQUA TASBIHA TABASSUM ANTORA

OBJECTIVE  Control multiple appliances and electronics using a single remote  An ordinary TV remote could be used

Arduino AC Power Adapter/Laptop 38 kHz Infrared Receiver Module Red LED Green LED Momentary Pushbutton Switch SYSTEM COMPONENTS 100 ohm Resistors 5V Relay Module Bread Board Servo Motor

38 kHz Infrared Receiver Module Detects the signal from the remote Red LEDGlows when wrong password is entered Green LedGlows when correct password is entered Arduino Microcontroller Interfacing is done using this and programs are stored. Has a serial monitor function to observe the value for the signals. Fundamental Components

RelayActs as a switch. And also Arduino does not work on bigger appliances, and we use relay for bigger voltage supply. Arduino Microcontroller Interfacing is done using this and programs are stored. Has a serial monitor function to observe the value for the signals. Fundamental Components

PROCESS Devices are interfaced and switched using different keys of the remote Arduino is used to control the inputs and outputs. Infrared receiver is used to receive the infrared signals from TV Remote.

How it works Hardware:  Receiver detect the signal from the Remote  Different button have different values  The signal value from each button are recorded.  The necessary signal value are taken and programmed.  Allocated different signal values for each of the outputs(appliances) uniquely.

How it works Programming PasswordIRemoteServo password.appe nd(number); password.reset() ; password.evalu ate() irrecv.enableIRI n(); irrecv.decode(& results); irrecv.resume(); myservo.attach( 9); myservo.write(a ngle);

password.append(number ); Append a character to the currently guessed password password.reset();Reset the currently guessed password password.evaluate()Is the guessed password equal to the target password? irrecv.enableIRIn();Start the reciever irrecv.decode(&results)Deoode the signal and turn it to value irrecv.resume();Ready to receive the next signal myservo.attach(9);Servo input myservo.write(angle);Move the servo to the specified angle

Building The Circuit

Difficulties we faced  Using Servo Motor: Figuring out which angle works best  Signals from different remotes were detected

How we recovered Servo: Trial And Error Receiver: Programming the buttons as much as possible. The experimentation had to be done when no other IR remotes were used.

Benefits  Convenient  Inexpensive Can be used by  Frail old people  Patients  Handicapped people

Future Development  Screen System for display  Better security(Password)  Controlled by Android System  Bigger appliances could be added

THANK YOU