Flash an led on and off

On this page we will discuss connecting to the parallel port and will have a variety of source code .

A word of warning , we take no laibility for any damage that may be caused by connecting up your PC and building this project .

Firstly click on this link to see a the pinout of a typical printer port and some notes .

In the example we will be connecting pin 2 to a resistor and an LED . Click here to look at the simple schematic and notes .

Now lets look at the various programs to flash the LED on and off . We will start with the Visual C++ version .

Visual C++ source code

Using Debug

Turbo C source code

Visual Basic source code

QBasic source code