Just made my breakoutboard

[fidolinux]

Ive just finished drawing my breakout board.
If anyone wonna give it a comment you can see it on the link below.

http://fidolinux.dk/electronic/break...akoutboard.php

My next step is to make the drivers :P

This is how far i am on my machine:
http://badsector.dk/view_album.php?s...me=ACNCmachine

[Madclicker]

What are all those resistors for? You need to pull the signal up. Series resistors drop the voltage. Also, I would use opto isolators on key signal lines.

[fidolinux]

ya, but you wont have much of a drop on a 100 ohm resistor.
Is pullup really nessacery on the lines ? Not many ive seen on the web has it.

[fidolinux]

btw my pullups will be at the driver boards.... so it should be okay :P

[cnczoner]

Fido, why a switching power supply? Will the 5V be sourced to something else that requires it? I ask because if you don't need much current you'll do better with a wall-wart and a linear 5V regulator, as switchers will add unncessary noise.

Here is my homemade optoisolated breakout board...


Cheers,
-Neil.