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PC Remote Control

Discussion in 'Doubts in My Projects' started by Binu, Jun 27, 2008.

  1. Binu

    Binu Administrator

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    The convenience of selecting TV channels using your remote and then pointing the same remote to your Computer so that you can control the whole system using the single remote control. The 8 bit Microcontroller AT89C2051 is used to control all the system. An integrated Infrared Receiver is used to receive the infrared signal from the remote control handset.
    The received infrared signal was decoded by using the program, which was written on the ROM of the Microcontroller. The programs are flashed on the ROM area of the Microcontroller. The Flash memory is a type of EEPROM. The Details of the switch pressed was sent to the PC through its serial port. In the PC, Visual Basic was used to control the PC through the API functions.

    The Following functions can be done with PC Remote control.
    * All Numerical Keys (0 - 9)
    * Arithmetic Keys (+, -, /, *)
    * Enter, Escape, Help, Refresh, Caps lock, Tab, Back space, delete, Left, Right, Up, down arrows, Page up, Page down, Window keys.
    * Calculator, Notepad
    * CD drive Open/Close
    * Control panel
    * Computer log off, reboot or shutdown
    * Volume Up, down, Mute
    * 5 User defined Programs

    Project Descriptions
    The Main Part of the system is designed by using the Microcontroller AT89c2051. The infrared receiver have three pins in which two pins are for +5v supply and ground while the third pin is for data output. The Infrared Receiver is designed for demodulating the frequency of 30khz to 40khz, for example, TSOP1838 is designed for demodulating frequency of 38khz which is used in our project.

    The IR receiver module receives the data sent by remote handset, amplifies, demodulates and converts it to MCU compatible voltage format and outputs it on its data output pin. The microcontroller decodes the infrared signal data and the microcontroller will sent the infrared Key code to the PC through the Serial port.

    We use Microsoft Visual Basic 6.0 to receive the Key code through the Component called MSCOMM which is an component for the Com port control. Through this component we get the key code and do the appropriate functions.

    After getting this key code of the Remote control the program compare the keycode with the code present in the program and if they are equal then the corresponding function was done.

    Circuit Diagram:
    [​IMG]

    For Screen shots and Pictures click here

    Program: View attachment pc_remote.zip
  2. download_crux

    download_crux New Member

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    pcb layout plsssssssssss
  3. Binu

    Binu Administrator

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    You can download it from the Projects page.
  4. SURESH ESSAE

    SURESH ESSAE New Member

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    EVEN WHEY I LOGGED IN UNABLE TO DOWNLOAD THE FILES,
  5. Binu

    Binu Administrator

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    Its downloading well, clear your cookies and login again.
  6. rajeswari

    rajeswari New Member

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    sir ,plz tel me more about this project,
    downloaded ur code and circuit but iam not getting how to work this project.
    where is the code ,this is an application.
  7. Binu

    Binu Administrator

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    There is an file with extension .51 is the assembly code for the microcontroller and others for PC.
  8. abha1

    abha1 New Member

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    good evenin sir,
    this is my second project...
    last one was with your help too...
    i jus wanted 2 know thw exact details about the remote? is it the same one as our tv's?? what is d sensor inside the remote???
  9. abha1

    abha1 New Member

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    hi sir.
    i jus wanted 2 komw what remote is it exactly?
    what sensor is in tthe remote it exactly??
    is it the same remote fot the tv's????
  10. abha1

    abha1 New Member

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    also sir i would like 2 know how do u complie all programs together???
    wat software we need 2 load? *.cls????
    visual basic i hav a certain idea about...hav done it before...n made a prohject too..on student database...
    but jus want 2 confirm...
    so many files???/
    how do we test them!!!
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