Controlling LED with Parallel Port

I would like to share with all of here with interesting mod that i've done,suitable for bling-bling modders.Im using lpt port (parallel port).Since there are such topic start in here,so i show you what the procedure to make this project.

Before you start this project,make sure your motherboard got parallel port (printer port),usually old motherboard already got at the back panel.Since my motherboard dont have any parallel port at back panel,i use expansion parallel port cable (samee like IDE cable but small) and connect to the motherboard as instruct in manual book.Below is a example of the cable.

So,this are the items you need before start : 1x printer cable (male-female)
1x connector
8x LED (any color u want)
8x Resistor (i use 1K ohm)
Wires

1)Ok,lets begin the first step.Take the printer cable and cut the cable to female side using cutter.Then you should have 1 long cable with male connector in the end.Afterthat,cut out the cable shield at the part you cutted the female side.You should see a bunch wires and each got colors.So,to make sure what wires you should use,refer back to the male connector.You should see there are codes for each pin (look closely) at this male connector.OK,lets move on to the second step.

2)The pin in male connectors should have a number like this 1-13 and 14-25.So the male connector got 25 pins. The wires you should are number 2-7.So,check the connector back and look the pins 2,3,4,5,6,7 and look what color for each numbers.Usually number 2 pin should red color wire while number 3 pin should orange.For 4-7,just check it out by urself.Be careful while choosing the wires because there are wires with same colors.To differentiate between this to wires,there are some black or white lining.Double check all the wires.

3)Take the connectors and put the LED just like the picture.The LED should be place in postive first which means the positive side is a left end of connector.

4)Take the first wire (number 2 pin wire,is a red color one),strip it a little.Then take the resistor (any side) and twist the wire to the resistor and solder it.Then insert the resistor in connector and tight the screw.

5)Now the positive side is settle already,now the negative side turn.The number 2 row (from left) should be negative side.The -ve side of LED should already insert in connector. Take extra wire and cut it around 1 inch-1.5 inch.Strip it and it should place opposite of -ve LED leg (please refer to the picture).

6)Alright, +ve and -ve side for first LED is done.Now do it for second LED. Same procedure,just find number 3 pin and check the wire (look out the colors).Take the number 3 wire and strip it to twist with capacitor,then solder.Insert the capacitor to the connector and tight the screw.Take the LED and place it just like number 3-4 procedure.

7)Take a look at -ve LED for second LED,the small wire that connected for first LED (-ve leg) should connect with -ve for second LED.(please refer to picture).All the -ve extra wires should connect each of every -ve LED.

8)You can make it till 8 LED (max).Finally,the last -ve extra wires should be connected with pin number 25.If the wires too short,add some wire to expand it like mine (look at arrow).

9)Protect all resistor leg with masking tape or any tape for isolation purposes

10).Double check ur project again especially +ve and -ve orientation each of LED.

11)Plug it to parallel port and start the computer.

12)If the project in good operational,u should see some blinking or all of LED is light up.IF not,just reach to the desktop first.

13)Now for windows procedure,you should copy this files name 'inpout32.dll' to window system folder (default is C/windows/system/).

14)Then extract LLE folder to anywhere u want and execute 'LLE' application.The software should open up like pictures above.Look out the effect of LED to see ur project is operational like normal.


P/s-- 1)U can choose what ever color u want and placement of LED. I place it green x3,blue x2 and 2x red color LED ( I do 7 LED for this project,so lazy to add the last LED,but stll can work.Put 1 LED for this project also can)
2)If all LED no working,check the BIOS,make sure ur parallel port is on (enable) *(preferably 0378-037F)
3)Still not working? Recheck u wiring again.
4)im not sure the capacitor OHM value, but i use 1K ohm,maybe 450 ohm also can (im noobie in electronic)



Lpt port also known as parallel port are usually use for printer.Already tested the for windows XP and Vista, working like a charm. Check out my LPT LED project.

Im not responsible for possible damages you can cause.


**Below are the pictures.Please take note the last picture should be first step.