Re: DIY DRO Kit Update

I would have to think about it in greater depth but it might be
possible with a software change and a few PCB tweaks. The scale
inputs use level translating buffers that take the 1.5V digital
input from the Chinese scales and shifts it up to 5V. That would
have to be changed to whatever the quadrature encoders use. This
would probably be a blue wire and resistor change.

The software might be a little tricky to read three encoders at the
same time and guarantee that you do not miss one. I'll noodle on it
a bit.

Scott

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Dan Mauch" <dmauch@s...>
wrote:

>
> One feature that you may want to implement is to use standard

quadrature

> encoders. If implementeed then the linear encoders from US digital
> could also used with different cables and different software.
> Dan
> -----Original Message-----
> From: sshumate [mailto:sshumate@y...]
> Sent: Tuesday, August 05, 2003 8:26 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: DIY DRO Kit Update
>
>
> Vince,
>
> The PIC image will be freely available without any security
> measures. I designed the DRO to be easily upgradable over a PC
> serial port so that people can program their own DROs when updates
> and bug fixes become available. I would like to implement any

ideas

> people might have for new features since there is still a lot of

code

> space available in the PIC. You are free to browse the PIC
> assembler. :)