{"id":1158,"date":"2014-02-03T16:53:09","date_gmt":"2014-02-03T16:53:09","guid":{"rendered":"http:\/\/www.phillips321.co.uk\/?p=1158"},"modified":"2014-02-03T16:53:09","modified_gmt":"2014-02-03T16:53:09","slug":"improving-raspberrypi-usb-performance","status":"publish","type":"post","link":"https:\/\/www.phillips321.co.uk\/2014\/02\/03\/improving-raspberrypi-usb-performance\/","title":{"rendered":"Improving RaspberryPi USB performance"},"content":{"rendered":"<p>So I&#8217;ve been playing with the raspberry pi again lately and once again have got frustrated with the USB ports. Thus, i decided it was about time I looked into sorting them.<\/p>\n<p>I wanted to add a capacitor to the USB ports to allow better hot-plugging of devices as the issues is well documented everywhere.<\/p>\n<p>I decided I think the USB ports only support 200mA per port but when using a USB webcam and wifi adapter I was having difficulty with the power draw as the camera would often disappear from the device.<\/p>\n<p>I decided to bridge power directly from the microUSB power input in order to provide the RaspberryPi with more power on the USB ports.<\/p>\n<p>I decided the easiest place to take the power from was the fuse(F3) and diode(D17) at the top of the board shown here:<br \/>\n<a href=\"https:\/\/www.phillips321.co.uk\/wp-content\/uploads\/2014\/02\/DSC01493.jpg\"><img loading=\"lazy\" src=\"https:\/\/www.phillips321.co.uk\/wp-content\/uploads\/2014\/02\/DSC01493-300x225.jpg\" alt=\"DSC01493\" width=\"300\" height=\"225\" class=\"aligncenter size-medium wp-image-1167\" srcset=\"https:\/\/www.phillips321.co.uk\/wp-content\/uploads\/2014\/02\/DSC01493-300x225.jpg 300w, https:\/\/www.phillips321.co.uk\/wp-content\/uploads\/2014\/02\/DSC01493-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>And wire them directly into the USB positive(+) and negative(-) pins for the USB headers:<br \/>\n<a href=\"https:\/\/www.phillips321.co.uk\/wp-content\/uploads\/2014\/02\/DSC01491.jpg\"><img loading=\"lazy\" src=\"https:\/\/www.phillips321.co.uk\/wp-content\/uploads\/2014\/02\/DSC01491-300x225.jpg\" alt=\"DSC01491\" width=\"300\" height=\"225\" class=\"aligncenter size-medium wp-image-1165\" srcset=\"https:\/\/www.phillips321.co.uk\/wp-content\/uploads\/2014\/02\/DSC01491-300x225.jpg 300w, https:\/\/www.phillips321.co.uk\/wp-content\/uploads\/2014\/02\/DSC01491-1024x768.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>This works perfectly and I no longer have devices periodically lost or random reboots \ud83d\ude42<\/p>\n","protected":false},"excerpt":{"rendered":"<p>So I&#8217;ve been playing with the raspberry pi again lately and once again have got frustrated with the USB ports. Thus, i decided it was about time I looked into sorting them. I wanted to add a capacitor to the USB ports to allow better hot-plugging of devices as the issues is well documented everywhere. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1164,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[411,410,330,350,412,409],"_links":{"self":[{"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/posts\/1158"}],"collection":[{"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/comments?post=1158"}],"version-history":[{"count":3,"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/posts\/1158\/revisions"}],"predecessor-version":[{"id":1171,"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/posts\/1158\/revisions\/1171"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/media\/1164"}],"wp:attachment":[{"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/media?parent=1158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/categories?post=1158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.phillips321.co.uk\/wp-json\/wp\/v2\/tags?post=1158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}