{"id":2789,"date":"2021-04-12T08:38:02","date_gmt":"2021-04-12T12:38:02","guid":{"rendered":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/?p=2789"},"modified":"2021-04-12T09:23:32","modified_gmt":"2021-04-12T13:23:32","slug":"4-12-catherine-yanwen-update","status":"publish","type":"post","link":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/2789\/4-12-catherine-yanwen-update\/","title":{"rendered":"4\/12 Catherine &amp; Yanwen Update"},"content":{"rendered":"\n<p>We rewired the 3&#215;3 sensor grid we had last week and the signals become much cleaner, so I think the noisy signal from last week is caused by error in wirings.<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/707-1.mp4\"><\/video><\/figure>\n\n\n\n<p>We were able to figure out a somewhat efficient way to create the sensor grid and fabricated a 6&#215;6 sensor grid(which still took 2h+) and got it connected\/working with both the arduino code and processing code.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" src=\"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/IMG_7825-1024x1024.jpg\" alt=\"\" class=\"wp-image-2790\" width=\"580\" height=\"580\" srcset=\"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/IMG_7825-1024x1024.jpg 1024w, https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/IMG_7825-300x300.jpg 300w, https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/IMG_7825-150x150.jpg 150w, https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/IMG_7825-768x768.jpg 768w, https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/IMG_7825-1536x1536.jpg 1536w, https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/IMG_7825-2048x2048.jpg 2048w, https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/IMG_7825-1140x1140.jpg 1140w\" sizes=\"(max-width: 580px) 100vw, 580px\" \/><\/figure>\n\n\n\n<p>Though some issues remain:<\/p>\n\n\n\n<ul><li>Touch is rarely detected with touching, and the accuracy increases with pressing. We played a little with tunable parameters and thresholds but the issue remains. We think a potential reason for it is the fabrication of the sensor grid. The 3&#215;3 sensor we had  has copper tape taped on both sides of a plastic sheet, but this 6&#215;6 sensor has one side on paper, a plastic sheet layered on top of the bottom sheet, and the second layer of copper tape taped on top of the plastic sheet.<\/li><li>Multitouch is far from robust. Again, we think the fabrication could be the issue. Because we have to press hard on the grid to get a detection, it was difficult to have a single contact point from a single touch.<\/li><li>Sliding\/stroking behavior does not appear obvious. We think one reason could be with sliding\/stroking, the finger stays on one contact position for too short a period of time, so we need to go back and look at the paper again for more information. And similarly, the fabrication could cause the issue.<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-video\"><video controls src=\"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-content\/uploads\/2021\/04\/IMG_7821-1.mp4\"><\/video><\/figure>\n\n\n\n<p>Action item for next week:<\/p>\n\n\n\n<ul><li>Remake the 6&#215;6 grid using the 3&#215;3 method for a more robust sensor grid<\/li><li>Look at the paper again<\/li><li>Decide on what gestures can be detected<\/li><\/ul>\n\n\n\n<p>Four week plan<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Week<\/td><td>Goals<\/td><\/tr><tr><td>4.12-4.18<\/td><td>Decide on what gestures can be detected<\/td><\/tr><tr><td>4.19-4.25<\/td><td>Test sound output<br>Decide uses of different outputs(auditory&amp;visual)<br>Decide sensor grid materials: conductive tape\/conductive yarn<\/td><\/tr><tr><td>4.26-5.2<\/td><td>Start on fabricating the page from a textile learning book<\/td><\/tr><tr><td>5.3-5.9<\/td><td>Finish fabricating the page from a textile learning book<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>We rewired the 3&#215;3 sensor grid we had last week and the signals become much cleaner, so I think the noisy signal from last week is caused by error in wirings. We were able to figure out a somewhat efficient way to create the sensor grid and fabricated a 6&#215;6 sensor grid(which still took 2h+)<br \/><a href=\"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/2789\/4-12-catherine-yanwen-update\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">4\/12 Catherine &amp; Yanwen Update<\/span> <\/a><\/p>\n","protected":false},"author":50,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/posts\/2789"}],"collection":[{"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/users\/50"}],"replies":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/comments?post=2789"}],"version-history":[{"count":2,"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/posts\/2789\/revisions"}],"predecessor-version":[{"id":2797,"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/posts\/2789\/revisions\/2797"}],"wp:attachment":[{"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/media?parent=2789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/categories?post=2789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/16-480\/s2021\/wp-json\/wp\/v2\/tags?post=2789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}