Re: [CAD_CAM_EDM_DRO] Cheap DRO system using digital scales and a PC

Frans,

Motorola and National have some serial interfaces, SPI I think. Notes
are at work, but you can find on web. Search for "serial interface", or
things like that. If it is or is similar to SPI, you typically have a
"Chip Select" to enable a chip to talk.

Hope this helps a little!

Alan

Frans Nieuwerth wrote:

> ....snip...
> 2) I need a designation of the 4 connections, which one is ground,
> clock, signal etc. and what is the protocol typically used on these
> scales. I have read that this is often an SPC interface, but I am
> unable to find the specification for this SPC. Any pointers??
> ....snip...