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<p>Shawn,</p>
<p>Thanks put I understand encoders and have all sorts of code for
encoders. Embedded HW/SW stuff was my day job for a number of
years.</p>
<p>Thanks<br>
Jay S.<br>
</p>
<div class="moz-cite-prefix">On 2/8/2020 3:04 PM, Shawn Rakestraw
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CA+-UNiB7jyxy34HS-837M=piTQTPD69DL8kbc2XP=5cUYxfKLQ@mail.gmail.com">
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<div>I don't know if this will help you or not, but I have just
assembled two projects that use Teensy microcontrollers. This
is the encoder that I used. I can't say for sure how it
outputs the signals.</div>
<div><br>
</div>
<div><a
href="https://www.mouser.com/ProductDetail/858-EN11-HSM1BF20"
moz-do-not-send="true">https://www.mouser.com/ProductDetail/858-EN11-HSM1BF20</a></div>
<div><br>
</div>
<div>Shawn<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sat, Feb 8, 2020 at 5:44 PM
Jay Schwichtenberg <<a href="mailto:jschwich53@comcast.net"
moz-do-not-send="true">jschwich53@comcast.net</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>At least for the Alps pg 267 in the data sheet on the
Mouser web site show you what's going on. This is pretty
standard for this type of encoder.<br>
</p>
<p><a
href="https://www.mouser.com/datasheet/2/15/alps_alps-s-a0008379064-1-1733314.pdf"
target="_blank" moz-do-not-send="true">https://www.mouser.com/datasheet/2/15/alps_alps-s-a0008379064-1-1733314.pdf</a></p>
<p>Jay S.<br>
</p>
<div>On 2/7/2020 5:00 AM, Spiros Makris wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hello,
<div>I am putting together a teensy application that
uses rotary encoders. I picked up two different ones
from my local shops, but they seem to have a different
output waveform scheme.</div>
<div>One is an EC11e15204a3 alps (according to the guy
selling it) and on each detent, the outputs switch
between high and low. So, 00->11->00 and each
transition from 00 to 11 and vice versa happens when
you hit a detent.</div>
<div>The other is a bourns by the looks of it, and works
differently: When resting, it defaults to 00. When
turned, it briefly becomes 1, then returns to 00. <br>
(obviously, the turn direction is detected during the
transitions).</div>
<div>The second type detects two increments instead of
one, as a result.</div>
<div>Where in the datasheet is this specified? Both are
sold as "2 channel quadrature outputs" but the
detection code is slightly different (unless I'm
missing something?). Is there code that can work with
both? I am using polling and shift registers and don't
need any significant accuracy- the delay so far feels
great.</div>
<div>Is there a cheaper alternative to the 5pin
arrangement of the EC11? It seems that those without
switches only have 3 pins- they will be going on a
prefboard and the extra support would be welcome (I'm
not compelled to drill 64 holes for the side supports
:P ).</div>
<div><br>
</div>
<div>Regards,</div>
<div>Spiros</div>
</div>
<br>
<fieldset></fieldset>
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