/challenges-projects/project14/holidayspecial20/b/blog/posts/a-qt-py-christmas---add-cap-sense-buttonsThe SAMD21 processor that is used on the QT Py has a built in Peripheral Touch Controller (PTC) that can detect touch on external capacitive sensors. The PTC has a mutual-capacitance mode to sense touch on an x-y matrix and a self-capacitance m...en-USTelligent Community 12https://community.element14.com/challenges-projects/project14/holidayspecial20/b/blog/posts/a-qt-py-christmas---add-cap-sense-buttonsThu, 21 Jan 2021 19:29:24 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:78e1bce5-f77e-4bd3-ab2e-cd55d0ca827eshabaz0<p>Hi Ralph,</p><p>&nbsp;</p><p>Great idea to use thumb tacks (or drawing pins as they are called here) as touch sensing plates : )</p><img src="https://community.element14.com/aggbug?PostID=10474&AppID=278&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/holidayspecial20/b/blog/posts/a-qt-py-christmas---add-cap-sense-buttonsMon, 14 Dec 2020 12:03:06 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:78e1bce5-f77e-4bd3-ab2e-cd55d0ca827eneilk0<p>Neat!</p><p>&nbsp;</p><p>Neil</p><img src="https://community.element14.com/aggbug?PostID=10474&AppID=278&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/holidayspecial20/b/blog/posts/a-qt-py-christmas---add-cap-sense-buttonsMon, 14 Dec 2020 02:23:26 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:78e1bce5-f77e-4bd3-ab2e-cd55d0ca827efmilburn1<p>Pretty cool.&nbsp; I added in a QT Py on a recent order to Adafruit after reading your posts and will have to try this out.</p><img src="https://community.element14.com/aggbug?PostID=10474&AppID=278&AppType=Weblog&ContentType=0" width="1" height="1">