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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I use 300 Ohms pullup to 3.3V and no caps. There is still a short bounce period but after that the strong current flow keeps it clean and most scanning code
works. For interrupt driven you’ll probably need to disable the interrupts for a short time.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Synth-diy [mailto:synth-diy-bounces@synth-diy.org]
<b>On Behalf Of </b>Jean-Pierre Desrochers<br>
<b>Sent:</b> 06 August 2021 16:47<br>
<b>To:</b> 'SDIY'<br>
<b>Subject:</b> [sdiy] Need goog working rotary encoder in C code..<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoPlainText"><span lang="FR-CA">Hi everybody.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="FR-CA"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">I’m doing some tests on a rotary encoder and a PIC16F1783.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">A standard Bourns encoder like <a href="https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjyoqDF3JzyAhUmhOAKHf3lAzoQFnoECAoQAw&url=https%3A%2F%2Fwww.bourns.com%2FPDFs%2Fpec11l.pdf&usg=AOvVaw2RyieyzPnujiOTS7LBcbpw">
THIS</a> .<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">Connected using 2 x 10k pullups with 0.01uf caps to ground<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">to PORTB of the micro. Interrupt calls (falling edges) used on encoder pins A & B.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">I struggled so far to get clean increments/decrements out of it.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">Many missing counts occur..<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">I tried many source codes on the web with no luck..<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">Is there anybody who’d have worked on this in the past<br>
and have a working c code ?<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">No ARDIUNO please.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-CA">Thanks !<o:p></o:p></span></p>
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