Re: Cheap DRO system using digital scales and a PC

Hi,
If these are similar to the caliper interfaces, I have temporarily
posted scanned images of an article on the serial interface. They
used a SBC to translate the RS232 format signals to regular RS232,
but you could work up a direct connection easily.
You can find the common ground with an ohmmeter my checking
continuity to the battery contacts - terminal and
the 4pins suspected as the 'serial' port.
The others are probably clk and data. the 4th
will probably be a hold indicator or etc.

http://www.users.qwest.net/~indigo_red/files/caliper/

-Lee

> Questions:
> 1) Each of the scales is having a possibility for a data connector,
> with 4 wires. However I can not determine the type of connector
> needed. Any suggestions? It looks like a small flat connector with

4

> wires on a 0.1" grid.
>