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<DIV dir=ltr align=left><SPAN class=292114423-16072017><FONT color=#0000ff
size=2 face=Arial>Ditto! My mind is reeling with uses for these cool
pots.</FONT></SPAN></DIV><BR>
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<FONT size=2 face=Tahoma><B>From:</B> Synth-diy
[mailto:synth-diy-bounces@synth-diy.org] <B>On Behalf Of </B>Rick
Jansen<BR><B>Sent:</B> Monday, July 10, 2017 6:50 AM<BR><B>To:</B> Ullrich
Peter<BR><B>Cc:</B> synth-diy@synth-diy.org<BR><B>Subject:</B> Re: [sdiy]
sin/cos pot<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV></DIV>
<DIV>Very useful! Thanks for this, I had never seen it before.</DIV>
<DIV><BR></DIV>
<DIV>rick</DIV>
<DIV><BR>On 10 Jul 2017, at 13:12, Ullrich Peter <<A
href="mailto:Peter.Ullrich@kapsch.net">Peter.Ullrich@kapsch.net</A>>
wrote:<BR><BR></DIV>
<BLOCKQUOTE type="cite">
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<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US>Hi!<O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US>Maybe the Bourns ACE Encoder could fit here: absolute encoder,
128 states per revolution, no hard steps<O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><A
href="https://www.bourns.com/pdfs/ace.pdf">https://www.bourns.com/pdfs/ace.pdf</A><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US>about 5pounds<O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><A
href="http://uk.farnell.com/bourns/eaw0j-b24-ae0128l/encoder-rotary-128pos-8-bit/dp/9358234">http://uk.farnell.com/bourns/eaw0j-b24-ae0128l/encoder-rotary-128pos-8-bit/dp/9358234</A><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US>Youtube:<O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><A
href="https://www.youtube.com/watch?v=MrPW8QGmlrM">https://www.youtube.com/watch?v=MrPW8QGmlrM</A><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><A
href="https://www.youtube.com/watch?v=44-XMo730wI">https://www.youtube.com/watch?v=44-XMo730wI</A><O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><O:P></O:P></SPAN></P>
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style="FONT-FAMILY: 'Calibri',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
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<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US>Ciao<BR>Peter<O:P></O:P></SPAN></P>
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<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><A
href="http://www.ullrich.at.tt">http://www.ullrich.at.tt</A>
(My homepage)<O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><A
href="http://synpro.heimat.eu/datadial.htm">http://synpro.heimat.eu/datadial.htm</A>
(Synth addon)<O:P></O:P></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; FONT-SIZE: 11pt; mso-fareast-language: EN-US"
lang=EN-US><A
href="http://rc100-usb.at.tt/">http://rc100-usb.at.tt/</A>
(Roland sampler tool)<O:P></O:P></SPAN></P>
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lang=EN-US><O:P></O:P></SPAN></P>
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lang=EN-US><O:P></O:P></SPAN></P>
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<DIV
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<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; FONT-SIZE: 11pt"
lang=DE>Von:</SPAN></B><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; FONT-SIZE: 11pt" lang=DE>
Synth-diy [<A
href="mailto:synth-diy-bounces@synth-diy.org">mailto:synth-diy-bounces@synth-diy.org</A>]
<B>Im Auftrag von </B><A
href="mailto:paula@synth.net">paula@synth.net</A><BR><B>Gesendet:</B>
Montag, 10. Juli 2017 12:51<BR><B>An:</B> Julian Schmidt <<A
href="mailto:elfenjunge@gmx.net">elfenjunge@gmx.net</A>><BR><B>Cc:</B> <A
href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</A><BR><B>Betreff:</B>
Re: [sdiy] sin/cos pot<O:P></O:P></SPAN></P></DIV></DIV>
<P class=MsoNormal><O:P></O:P></P>
<P><SPAN style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">Issues I
see with a sin/cos pot;<O:P></O:P></SPAN></P>
<P><SPAN style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">Use of 2 x
ADC channels (more expensive than logic inputs)<O:P></O:P></SPAN></P>
<P><SPAN style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">Slightly
more complex software for reading/processing the sin/cos
outputs.<O:P></O:P></SPAN></P>
<P><SPAN style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">Advantge;
you get an absolute position.<O:P></O:P></SPAN></P>
<P><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt"><O:P></O:P></SPAN></P>
<P><SPAN style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">if you
want more resolution from a regular grey code rotary encoder. you can use
double edge triggering.<O:P></O:P></SPAN></P>
<P><SPAN style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">So instead
of just picking the rising edge on one channel, use both edges, this will
give you 48PPQN with a 24PPQN encoder.<O:P></O:P></SPAN></P>
<P><SPAN style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">I guess,
though not tested, you could go a step further and use edge detection on
both channels and both edges on both channels giving you 96PPQN from a
24PPQN encoder, though I would expect switch bounce to cause more of a
problem at this resolution.<O:P></O:P></SPAN></P>
<P><SPAN style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">Downside;
no absolute position.<O:P></O:P></SPAN></P>
<P><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt"><O:P></O:P></SPAN></P>
<P><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">Paula<O:P></O:P></SPAN></P>
<P><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt"><O:P></O:P></SPAN></P>
<P><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt"><O:P></O:P></SPAN></P>
<P><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt"><O:P></O:P></SPAN></P>
<P><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt"><O:P></O:P></SPAN></P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt"><O:P></O:P></SPAN></P></DIV>
<P><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt"><O:P></O:P></SPAN></P>
<P><SPAN style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">On
2017-07-10 11:31, Julian Schmidt wrote:<O:P></O:P></SPAN></P>
<BLOCKQUOTE
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<P style="MARGIN-BOTTOM: 12pt" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">I also found them
at <SPAN style="COLOR: #1f497d"><A
href="http://www.adimpex.it/">www.adimpex.it</A> for 1.15€/pcs. but they
have a minimum order amount of 200€ :-/<BR>still looking for a better
sample source.</SPAN><O:P></O:P></SPAN></P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Arial',sans-serif; FONT-SIZE: 10pt">Am 10.07.2017 um
12:09 schrieb Michael Zacherl:<O:P></O:P></SPAN></P></DIV>
<BLOCKQUOTE
style="BORDER-BOTTOM: medium none; BORDER-LEFT: #1010ff 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5pt; PADDING-RIGHT: 0cm; MARGIN-LEFT: 0cm; BORDER-TOP: medium none; MARGIN-RIGHT: 0cm; BORDER-RIGHT: medium none; PADDING-TOP: 0cm"><PRE>On 9.Jul 2017, at 12:42 , Julian Schmidt <A href="mailto:elfenjunge@gmx.net"><elfenjunge@gmx.net></A> wrote:<O:P></O:P></PRE><PRE><O:P> </O:P></PRE>
<BLOCKQUOTE
style="BORDER-BOTTOM: medium none; BORDER-LEFT: #1010ff 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5pt; PADDING-RIGHT: 0cm; MARGIN-LEFT: 0cm; BORDER-TOP: medium none; MARGIN-RIGHT: 0cm; BORDER-RIGHT: medium none; PADDING-TOP: 0cm"><PRE>Anybody has an idea what the part number for the continuous alpha pots is?<O:P></O:P></PRE><PRE>I just asked the other day for an encoder alternative with higher resolution, they would be great!<O:P></O:P></PRE><PRE>Maybe I'd have to ask my distributor in taiwan about them.<O:P></O:P></PRE></BLOCKQUOTE><PRE>Thanks for sharing, didn't know such a pot exists.<O:P></O:P></PRE><PRE>How would you tell the direction of the movement?<O:P></O:P></PRE><PRE><O:P> </O:P></PRE><PRE>BTW, $15 ... hm ... needs quantities I'd guess ... <O:P></O:P></PRE><PRE><A href="https://www.aliexpress.com/item/1pcs-ALPHA-RV112FF-40B3N-22F-0B10K-Encoder-360-degree-turn-gain-potentiometer/32751858615.html">https://www.aliexpress.com/item/1pcs-ALPHA-RV112FF-40B3N-22F-0B10K-Encoder-360-degree-turn-gain-potentiometer/32751858615.html</A><O:P></O:P></PRE><PRE><O:P> </O:P></PRE><PRE>Thanks, Michael.<O:P></O:P></PRE><PRE><O:P> </O:P></PRE><PRE><O:P> </O:P></PRE><PRE><O:P> </O:P></PRE><PRE>_______________________________________________<O:P></O:P></PRE><PRE>Synth-diy mailing list<O:P></O:P></PRE><PRE><A href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</A><O:P></O:P></PRE><PRE><A href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</A><O:P></O:P></PRE></BLOCKQUOTE>
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