i'm looking at my renishaw probes , i'm not sure if i am seeing this
but apart from decoding the stream , i'm seeing  when not touching the
probe emits a signal at about 150khz. When it senses touch it goes up to
but at the moment i'm not sure , as the only ir detectors i have works at
i'm using an arduino for quickness , although i would be using a stm32 once
iv'e figured it all out

On 20 September 2016 at 00:57, hubert <> wrote:

> Hi All
> This thread and it's follow on triggered my interest, so I just snagged
> a Renishaw MP3 probe on Ebay and now face the task of interfacing this
> to my New CNC mill which I am due to pickup later this week.  I ordered
> the mill with LinuxCNC using the Mesa cards to interface to the
> computer.  The mill uses Servo's on X,Y,Z.  It is a small mill with a 12
> position tool changer, thus I am hoping to put the probe in one of the
> pockets and use it to sense work-piece position, and also to digitize.
> While this is my Hobby mill I am hoping to get close to 100micro inches
> repeatability.  I would appreciate any pointers to available data for
> building/buying a relatively inexpensive transmitter receiver for this
> purpose.
> On 9/8/16 11:07 AM, Jon Elson wrote:
> > On 09/08/2016 09:56 AM, Florian Rist wrote:
> >> Hi Jon
> >>
> >>> Yes, I thought about building a receiver out of various
> >>> parts, but there are application specific parts that combine
> >>> all this in one unit.  Most are made with 38 KHz band pass
> >>> filters for VCR remote controls,
> >> Yes, that's why I didn't even look into theses integrated devices.
> >>
> >>> but the QSE159 does not
> >>> have the BPF, looked to be sensitive enough, and was really
> >>> cheap ($1.06)
> >> Indeed, interesting.
> >>
> >> Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to
> >> 2.5W/m², that's quite a lot. But, now that I started looking, there are
> >> quite a few similar integrated devices available, some with much high
> >> sensitivity down to at least 10µW/cm². However most are lacking the
> >> Schmitt-trigger of the QSE159, nice part, that you found, I'm going to
> >> get one, too.
> >>
> >>
> > I have no idea what the radiated power of the Blum probe is,
> > but it has 12 big surface-mount LEDs arranged around the
> > periphery.  The QSE sensor picks it up very well out past
> > 6", which is all the sensitivity I will need.
> >
> > Jon
> >
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> >
> >
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