Re: Cheap DRO system using digital scales and a PC

Lee,

Thanks for the information sofar. Your scanned article has been
helpful.
Do you have any idea of the name of the physical connectors used?
My calipers are having a 1.55 Volt battery as well, so probably
similar to yours.
I will be waiting for the results of your experiments.
Thanks again,
Frans

--- In CAD_CAM_EDM_DRO@egroups.com, "Lee Studley" <indigo_red@u...>
wrote:

> Hi,
> You got me thinking, so I hooked up a 'cheapie' caliper to my scope
> and found that the pins 1..4 agree with mitutoyo except my pin4 is
> Vbat=1.5v. I was hoping for a standard slow baud rate about 110baud.
> Whatever 1.5v micro is in there, its probably running off an RC
> clock, but at slow bauds, rate error can be an acceptable

percentage

> of the overall transmitted packet.
>
> Since its async format, but with an optional clock, translation may
> not be needed, only voltage level translation which can be stolen
> from the other serial port pins. I'll put it on the storage
> scopes at work and figure it out. Probably sometime next week.
>
> I bought this one as a quill DRO 6". Just have to keep it out
> of the coolant...
>
> -Lee
>
>
> --- In CAD_CAM_EDM_DRO@egroups.com, diazden <diazden@o...> wrote:
> > Hello guys;
> > here are the pin definitions on my mitutoyo vernier caliper
> > pin n1 gnd, pin n2 data,pin n3 clock,pin n4 nc (it can be

ground )

> pin n5 request
> > all the info come in a leaflet with the tool
> > regards
> > mariano
> >
> > > List Manager