{"id":720,"date":"2009-11-01T14:42:51","date_gmt":"2009-11-01T20:42:51","guid":{"rendered":"http:\/\/alliwalk.com\/blog\/?p=720"},"modified":"2019-09-22T15:08:00","modified_gmt":"2019-09-22T21:08:00","slug":"week-8-phys-comp-h-bridge","status":"publish","type":"post","link":"https:\/\/alliwalk.com\/blog\/2009\/11\/week-8-phys-comp-h-bridge\/","title":{"rendered":"Week 8: Phys Comp &#8211; H Bridge"},"content":{"rendered":"<p><a href=\"http:\/\/farm3.static.flickr.com\/2745\/4065188615_297f9ea795.jpg\"><img loading=\"lazy\" class=\"alignnone\" title=\"Hbridge lab\" src=\"http:\/\/farm3.static.flickr.com\/2745\/4065188615_297f9ea795.jpg\" alt=\"\" width=\"500\" height=\"438\" \/><\/a><\/p>\n<p><br clear=\"all\" \/>In this lab, I was only confused by one part of instructions, which refers to the jumper on the Arduino. The model I have doesn&#8217;t have a jumper on it, so I at first I thought I was stuck. But, a resident came over to help and explained that my model does the switching from EXT, drawing from external power, to USB automatically.<\/p>\n<p><a href=\"http:\/\/alliwalk.com\/blog\/wp-content\/uploads\/2009\/11\/powerjumper.png\"><img loading=\"lazy\" class=\"alignleft size-full wp-image-724\" title=\"Auto Power Jumper\" src=\"http:\/\/alliwalk.com\/blog\/wp-content\/uploads\/2009\/11\/powerjumper.png\" alt=\"Auto Power Jumper\" width=\"346\" height=\"260\" srcset=\"https:\/\/alliwalk.com\/blog\/wp-content\/uploads\/2009\/11\/powerjumper.png 346w, https:\/\/alliwalk.com\/blog\/wp-content\/uploads\/2009\/11\/powerjumper-300x225.png 300w\" sizes=\"(max-width: 346px) 85vw, 346px\" \/><\/a><br \/>\n<br clear=\"all\" \/>Well, I still finished the lab&#8230;sort of. I have an issue described in the code, where my LED blinks 3 times, and then blinks once, then repeats. Also, my motor doesn&#8217;t really turn off completely when I click the switch and use the pot. It actually slows down a lot, then sort of stops, then jumps before starting all over again. This behavior is coordinated with the triple-blinking LED, which should not be blinking 3 times repeatedly like that, in a cycle. Apparently, it&#8217;s caused by something resetting itself. I&#8217;ll have to check into this and see if I can fix the problem.<\/p>\n<p>&#8230;.<\/p>\n<p>Later on I tried my connections again, and I&#8217;m still not sure what the problem could be. I don&#8217;t understand how to reduce the amount of voltage going to the motor, so I&#8217;m not sure how to not have this problem. In any case, I took more photos. Maybe my wiring is wrong?<\/p>\n<p><a href=\"http:\/\/farm3.static.flickr.com\/2696\/4065937524_2a99cbd37f.jpg\"><img loading=\"lazy\" class=\"alignnone\" title=\"HBridge\" src=\"http:\/\/farm3.static.flickr.com\/2696\/4065937524_2a99cbd37f.jpg\" alt=\"\" width=\"229\" height=\"306\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this lab, I was only confused by one part of instructions, which refers to the jumper on the Arduino. The model I have doesn&#8217;t have a jumper on it, so I at first I thought I was stuck. But, a resident came over to help and explained that my model does the switching from &hellip; <a href=\"https:\/\/alliwalk.com\/blog\/2009\/11\/week-8-phys-comp-h-bridge\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Week 8: Phys Comp &#8211; H Bridge&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":728,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,77,76],"tags":[142],"_links":{"self":[{"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/posts\/720"}],"collection":[{"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/comments?post=720"}],"version-history":[{"count":13,"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/posts\/720\/revisions"}],"predecessor-version":[{"id":3126,"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/posts\/720\/revisions\/3126"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/media\/728"}],"wp:attachment":[{"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/media?parent=720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/categories?post=720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alliwalk.com\/blog\/wp-json\/wp\/v2\/tags?post=720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}