<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">MPR121 is pretty awesome but no longer available from real suppliers. If this is a one off and you're down to get them from amazon or ebay, then it's great.<div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Apr 28, 2021, at 1:07 PM, Nathan Trites <<a href="mailto:nathan@idmclassics.net" class="">nathan@idmclassics.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div dir="ltr" class="">the MPR121 is used in a few modules that do this. The Doboz TSNM is an excellent module with schematic available, along with a few nice uses of pressure like looping modulation. <div class=""><br class=""></div><div class=""><a href="https://doboz.audio/tsnm-mkii/" class="">https://doboz.audio/tsnm-mkii/</a><br class=""></div><div class=""><br class=""></div><div class="">- Nathan</div></div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 27, 2021 at 2:50 PM Neil Harper via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" class="">synth-diy@synth-diy.org</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">how are touch-sensitive switches like the ones on this done?:<br class="">
<br class="">
<a href="https://www.perfectcircuit.com/random-source-tkb-3-5mm-jacks.html" rel="noreferrer" target="_blank" class="">https://www.perfectcircuit.com/random-source-tkb-3-5mm-jacks.html</a><br class="">
<br class="">
being able to do something like this, especially if it's latching  (one<br class="">
press on, one press off) would come in very handy. but i've never come<br class="">
across it in any diy schematics.<br class="">
<br class="">
i see that a few microcontrollers like the teensy have capacitance touch<br class="">
pins, but i'm wondering if things like sequencer are done all discrete?<br class="">
<br class="">
<br class="">
--<br class="">
/// Neil Harper<br class="">
/// Every Wave is New Until it Breaks<br class="">
<br class="">
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</blockquote></div>
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