{"id":25,"date":"2022-11-29T07:38:21","date_gmt":"2022-11-29T07:38:21","guid":{"rendered":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/?p=25"},"modified":"2022-11-29T07:38:21","modified_gmt":"2022-11-29T07:38:21","slug":"psa-check-your-wiring","status":"publish","type":"post","link":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/2022\/11\/29\/psa-check-your-wiring\/","title":{"rendered":"PSA. Check your wiring"},"content":{"rendered":"\n

For testing we are using a breadboard, which is a common piece of equipment that is used for electrical hobbies and to prototype electrical circuits. <\/p>\n\n\n\n

\"\"
A small project using a breadboard<\/figcaption><\/figure>\n\n\n\n

When I first installed the Teensy onto the breadboard and connected it to my computer via usb, I had nothing. A small LED operating light was left un-illuminated and I was left scratching my head. And when I touched the USB connection It was starting to get warm!. Too warm for a micro-usb connection. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Worried about the heat I unplugged the usb, removed the teensy from the breadboard and waited a few. For the next attempt I removed the Teensy from the breadboard and tested it this way. Everything worked, I was able to run memory tests and get some things going with the IDE and Teensy. Confused, I reconnected the teensy to the breadboard, and the same results as my first attempt! I randomly had an old voltmeter laying around, so I tested and found good power and ground at the appropriate pins. Thinking that there was a short to ground somewhere I looked up the wiring diagram and found out that a pin which I thought was ground, was actually a 5v VSUB pin. So basically I was grounding out the USB\u2019s 5v power supply to the Teensy board, causing the no boot and no power problem.\u00a0<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

With the amp draw that the VUSB pin was causing and the heat that was created. I was concerned about damage to the fragile microcontroller that I was working with, but luckily so far everything seems ok! Phew. Onwards to the next learning experience.<\/p>\n","protected":false},"excerpt":{"rendered":"

For testing we are using a breadboard, which is a common piece of equipment that is used for electrical hobbies and to prototype electrical circuits. When I first installed the Teensy onto the breadboard and connected it to my computer via usb, I had nothing. A small LED operating light was left un-illuminated and I […]<\/p>\n","protected":false},"author":12995,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-25","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/posts\/25","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/users\/12995"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/comments?post=25"}],"version-history":[{"count":2,"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/posts\/25\/revisions"}],"predecessor-version":[{"id":30,"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/posts\/25\/revisions\/30"}],"wp:attachment":[{"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/media?parent=25"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/categories?post=25"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.oregonstate.edu\/brahmrifino\/wp-json\/wp\/v2\/tags?post=25"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}