Archive for August, 2007

PC Parallel Port Interfacing Techniques – Part 2

16 October 2006 v1.0

Elec: 3.5 Comp: 2 Mech: 0

Introduction

In this tutorial we will flash a LED (Light Emitting Diode) connected to your printer port socket. Reading the first part is recommended to get a general idea what you are upto.

Connections

To connect a LED to your port first you have to know what it looks like. Here are the two most common connectors that you can have.

D-Type 25 Pin connector

Pin Layout:

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PC Parallel Port Interfacing Techniques – Part 1

 

6 October 2006 v1.0

 

Article: 2 Elec: 3.5 Comp: 3 Mech: 0

Introduction

In this tutorial I will just introduce the PC Parallel Port and how to identify its address for use in home electronic projects. Mind you the whole process and learning takes time but is fairly easy too! Remember, if you are interested then keep learning and trying new things. Fill me in if you have any questions or suggestions.

The Parallel Port is the most commonly used port for interfacing usual devices like printers and scanners. It’s found commonly on the back of your PC as a D-Type 25 Pin female connector. But did you know it can even be used to make home made projects?

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TWIT: Whats in a Pace Digital Receiver?

PACE
DVR 500 Digital Integrated Receiver Decoder
MODEL NO.: DVR01-G
PART CODE: 540-1601700
220 – 240V AC 50Hz 45W MAXSERIAL NO.: PCDCAKI617442265
Made In U.K.

Old Digital receiver I had. Another just like this is still here, might open it, might not. Trust me you can salvage a lot of electronic parts from your old electronic devices!


more…

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TWIT: Whats in a Composite to RF Converter

DETAILS:

Pooja Audio-Video To RF
Video C.D. Converter
Model V-CD 250
Made in India (Exclusively Local)

I bought this about 5 years ago in India, took me a while to find this awesome (at that time) device. Used it to connect my Playstation 2 to an old Sony TV which just had a single RF input port.

This Audio-Video to RF converter did exactly what it says. You connect your composite vid to the black connecter and one audio (no sterio) to the red and the RF output to your TV. Set at appropriate channel and fine tune with the pots at the back. Thats it.

Read on…

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TWIT: Think! Whats in this!

This is the first post for my dear twit. Whats in all those awesome (or boring) electronic equipments/devices etc. I started this because of two things.

1. Inspired by Take-it-Apart.

2. Got bored back home in KSA and opened up a lot of stuff. Had to do sometihng, so documented the whole (time wasting) activity.

3. I could salvage a lot of useful electronique parts even out of old obsolete devices.

So have fun and wait for more upcoming twits

Note to enthusiastx: If anyone has time please have a look at the IC list given with each device and send in/comment how they work so others can have a good idea how the thing works.