[sdiy] Rotary Encoder Design

[Mattias Rickardsson]

Teenage Engineering OP-Z has hall sensor encoders:

https://boulderhackerspace.com/2018/10/31/teenage-engineering-op-z-teardown/

>From the official product spec:

"unique encoder design
teenage engineering designed floating ball bearing hall sensor encoders for
minimal stacking height and wear."

https://teenage.engineering/products/op-z

Any other synths out there with hall effect? (-:

/mr

Den sön 26 juli 2020 09:01ASSI <Stromeko at nexgo.de> skrev:

> On Samstag, 25. Juli 2020 21:58:22 CEST Ben Bradley wrote:
> > Now that I see that, I remember seeing a similar magnetic rotary
> > sensor years ago, that probably gave me the idea for this. The reason
> > I came up with using two single-axis Hall effect sensors is two of
> > them are still several dollars less than a one-chip angle sensor at
> > about $6 each.
>
> You don't do that.  By the time you've figured out the how to align and
> calibrate the magnetic circuits you'll be several times that dollar amount
> short unless your time is worth nothing.  Instead you use a sensor that
> has
> multiple Hall elements integrated and the necessary compensation already
> built
> in, like the TLV493D (disclosure: I work for the manufacturer, but not on
> that
> product line).  There's an eval kit that comes with magnetics and
> everything
> should you want to try it:
>
>
> https://www.infineon.com/cms/en/product/sensor/magnetic-sensors/magnetic-position-sensors/3d-magnetics/tlv493d-a1b6/
> https://www.infineon.com/cms/en/product/evaluation-boards/mini_control2go/
>
> There's even code on GitHub that you can crib (it also has the 3D print
> data
> for the knobs).
>
> https://github.com/Infineon/TLV493D-A1B6-3DMagnetic-Sensor
>
>
> Regards,
> Achim.
> --
> +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+
>
> Wavetables for the Terratec KOMPLEXER:
> http://Synth.Stromeko.net/Downloads.html#KomplexerWaves
>
>
>
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