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-- Building and Programming a PC Remote
-- Category: Guide
-- Posted by: snow_veil
-- Posted on: 2004-02-24
-- Price: ~ $NA USD
-- Pages: [ 1 ] 2 3
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With the growing popularity of computer / home theater integration, there is one thing that most people find missing in the mix. It's probably the most common piece in even the cheapest video or audio component these days. What is it? A remote control. In this guide I'll go over the basics of building and programming a remote for your PC.

What's nice about a PC remote is that although it takes some work to get set up, the possibilities of what it can do are only limited to your imagination. Changing resolutions, opening applications, and locking your computer through windows are just examples of what is capable with a remote control and a little intuition.

Before we begin, lets see what you'll need software wise.

  • WinLIRC is the nitty gritty, behind the scenes type program that you will be using.
  • Girder builds upon WinLIRC commands to automate various tasks for your computer.
  • The WinLIRC Plugin for Girder is also necessary if you want the two programs to communicate.

Building The Receiver

   You'll need some basic soldering skills to do this project, but the schematic itself is very simple so don't worry about a complex design to deal with. If you're too afraid to attempt to build one yourself, or already have a remote going into your PC for some reason or another, check out Girder's list of supported hardware. If either of the previous two options are the case, don't worry about the building or WinLIRC portions of this guide. If you still decide to build the receiver yourself, you'll need one of each of the following:

  • 38kHz Infrared Receiver (find a list here)
  • 5v Voltage Regulator
  • 4.7 ÁF Electrolytic Capacitor
  • 4.7 kOhm Resistor
  • 1n4148 Diode
  • 9-pin Serial female connector with housing
  • varied length 3 (or more) conductor wire
  • project box to mount receiver in (optional)
  • small amount of perfboard (8x10 grid will be plenty)

Note that most of these items can be picked up at any Radio Shack. The serial connector and 3-conductor wire can be replaced with a serial cable, if you have one. Just use a multimeter to figure out which pin goes to which cable after you cut the sucker in half. Also note that it seems as if the Radio Shack IR Module (part# 276-640) will not work with this project. I have tried two separate modules and could get neither working. If you can get one to work, please let me know.

I followed Petri DamstÚn's circuit layout because I believe he did a very good job in keeping it simple and compact. Clicking the image or his name will take you to his page where he placed the receiver into a TIE fighter, a creative way to hide away the receiver and give it some aesthetic value.

board layout by Petri DamstÚn
Board layout by Petri DamstÚn

   I won't get too far into the details of building the circuit as they are very self explanatory. Some soldering experience is necessary, so if you don't have any get someone to help you out, or practice on bare wire first. When you're done with the build, your receiver should look something like this:

Finished receiver

   It's important to remember that depending on the type of IR module you purchase, you may need to cross leads on it to match the circuit design. Make sure you check the pinout of your components before soldering them into place. 

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