Hello visitor !
This is my first PC interfacing project via parallel port, I have interfaced my RC car via parallel port .Although in this case I have managed readymade code for it ,you can also write your own in C language, it’s quite easy you have to use inport and outport instructions ,search on net for it.
You can control 8 bits at a time; here is the URL from where I got the code
Instead of the transistors used as shown in the site I have used ULN2003/ULN2803 as they prove cheap and easy to solder .Go through the data sheet of the above mentioned IC’s before soldering them .So what are you waiting for ?
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