[sdiy] *EXT* Re: Looking for a mini rotary encoder with very low torque (servo type)

[Peter Ullrich]

Hi Jean-Pierre!

If you take a PS2 Mouse then there are Arduino libraries for this type that make it easy to work with...

Ciao
Peter


-----Ursprüngliche Nachricht-----
Von: Synth-diy <synth-diy-bounces at synth-diy.org> Im Auftrag von Jean-Pierre Desrochers via Synth-diy
Gesendet: Mittwoch, 11. Dezember 2024 16:42
An: 'Ben Stuyts' <ben at stuyts.nl>
Cc: synth-diy at synth-diy.org
Betreff: *EXT* Re: [sdiy] Looking for a mini rotary encoder with very low torque (servo type)

The surface I'm reading the moving speed of is paper.

Yes, a mouse optical sensor could be Ok.
I will have to find a way to read the actual X-Y 'steps' on the inner micro though..
Just want one of these.
But I don't want to get into the USB protocol to find these X-Y values..
Your suggestion is very promissing..
Thanks.

> -----Message d'origine-----
> De : Ben Stuyts <ben at stuyts.nl>
> Envoyé : 11 décembre 2024 10:30
> À : Jean-Pierre Desrochers <jpdesroc at oricom.ca> Cc :
> synth-diy at synth-diy.org Objet : Re: [sdiy] Looking for a mini rotary
> encoder with very low torque (servo
> type)
>
> I can't help you with the encoder, but just an idea: can't you use the
> sensor of an optical mouse? -> zero torque. Something like an
> ADNS-3050 although that one is obsolete now.
>
> Ben
>
>
> > On 11 Dec 2024, at 16:09, Jean-Pierre Desrochers via Synth-diy
> > <synth-
> diy at synth-diy.org> wrote:
> >
> > I'm looking for a very small (20mm or less body diameter) rotary
> > encoder with very low torque (servo type).
> > The low torque shaft is needed because it will turn by means of a
> > small wheel with rubber sides that will be put against a moving
> > surface, turn
> and 'follow'
> > the moving surface.. no slipping allowed !
> >
> > The precision of steps/turn is not important.
> > But the higher will be best..
> >
> > I was thinking of using a dismantled PC mouse (rubber ball type) and
> > use one of the two  X/Y optical rotary encoders, but these PC mice
> > nowadays are hard to find.. So.
> >
> > I checked Digikey and Mouser but they have encoder too big for my
> > uses..
> > The smaller I found has 20mm in diameter..
> > https://ww/
> > w.digikey.ca%2Fen%2Fproducts%2Fdetail%2Fnidec-components-corporation
> > &data=05%7C02%7CPeter.Ullrich%40kapsch.net%7C4fa3fe99528c4ac6ae0608d
> > d19fb089a%7C5f9ce5277e3e4e83a8a4b6c848f85ab5%7C1%7C0%7C6386952881543
> > 63365%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMD
> > AwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&
> > sdata=TduYNqFwNXhoHFiGqPFKtm%2B6PqVwbP2%2BPy6hBOIggNY%3D&reserved=0
> > /RES20D-50-201-1/6469509
> >
> > Any suggestions ?
> >
> >
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