<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><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"><div>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Vorformatiert Zchn";
margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.HTMLVorformatiertZchn
{mso-style-name:"HTML Vorformatiert Zchn";
mso-style-priority:99;
mso-style-link:"HTML Vorformatiert";
font-family:Consolas;}
span.E-MailFormatvorlage21
{mso-style-type:personal;
font-family:"Arial",sans-serif;
color:windowtext;}
span.E-MailFormatvorlage23
{mso-style-type:personal-compose;
font-family:"Arial",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US">Hi!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language: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 lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language: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 lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US">about 5pounds<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language: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 lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US">Youtube:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language: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 lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language: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 lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Ciao<br>
Peter<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language: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 lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language: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 lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><a href="http://rc100-usb.at.tt/">http://rc100-usb.at.tt/</a> (Roland sampler tool)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif">Von:</span></b><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> 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-size:10.0pt;font-family:"Arial",sans-serif">Issues I see with a sin/cos pot;<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Use of 2 x ADC channels (more expensive than logic inputs)<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Slightly more complex software for reading/processing the sin/cos outputs.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Advantge; you get an absolute position.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif">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-size:10.0pt;font-family:"Arial",sans-serif">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-size:10.0pt;font-family:"Arial",sans-serif">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-size:10.0pt;font-family:"Arial",sans-serif">Downside; no absolute position.<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Paula<o:p></o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> <o:p></o:p></span></p>
</div>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial",sans-serif">On 2017-07-10 11:31, Julian Schmidt wrote:<o:p></o:p></span></p>
<blockquote style="border:none;border-left:solid #1010FF 1.5pt;padding:0cm 0cm 0cm 5.0pt;margin-left:0cm;margin-right:0cm">
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">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-size:10.0pt;font-family:"Arial",sans-serif">Am 10.07.2017 um 12:09 schrieb Michael Zacherl:<o:p></o:p></span></p>
</div>
<blockquote style="border:none;border-left:solid #1010FF 1.5pt;padding:0cm 0cm 0cm 5.0pt;margin-left:0cm;margin-right: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:none;border-left:solid #1010FF 1.5pt;padding:0cm 0cm 0cm 5.0pt;margin-left:0cm;margin-right: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>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
<br>
<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">_______________________________________________<br>
Synth-diy mailing list<br>
<a href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</a><br>
<a href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a><o:p></o:p></span></p>
</div>
</blockquote>
</div>
<span style="font-size: 9px;"><br><br><br>The information contained in this e-mail message is privileged and confidential and is for the exclusive use of the addressee. The person who receives this message and who is not the addressee, one of his employees or an agent entitled to hand it over to the addressee, is informed that he may not use, disclose or reproduce the contents thereof, and is kindly asked to notify the sender and delete the e-mail <span style="font-size: 11px;"></span>immediately.<br><br></span>
</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Synth-diy mailing list</span><br><span><a href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</a></span><br><span><a href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a></span><br></div></blockquote></body></html>