Name of project: Light game on printer port
Stage: REALISED
Scope: Just for fun
Materials used:- 8 LEDs (LED=Light Emitting Diode)
                           -few short wires
                           -1 Centronics 25 pin male connector
                           -10 wires cable (8 wires for LED's anodes, 1 wire for ground, 1 wire for reserve )
                           -8 resistances of 900 Ohm ( I found values for this resistors in interval 470 Ohm - 1,7 KOhm in various documentations but using values to 1,7  KOhm it reduces intensity of light )

Semnification of used pins:
I've used data pins of printer port (2,3,4,5,6,7,8,9) , each one it's used to control one LED and pin 25 for ground.In the process of documentation I found in few sources recomendation that all the ground pins must be soldered electrically together. The electrically schematic follows.


 

pin  function
 2    D0
 3    D1
 4    D2
 5    D3
 6    D4
 7    D5
 8    D6
 9    D7

Pins 18,19,20,21,22,23,24 and 25 are ground pins.

Download HERE software for the light game.

Plugins for Winamp for use with this circuit

LED_Plugin_At_LPT_Port
LEDdiaglitez
LEDs_flashing_machine
 

Section under construction.

Section under construction