{"id":187,"date":"2015-04-26T23:37:46","date_gmt":"2015-04-27T04:37:46","guid":{"rendered":"http:\/\/hconde.com\/wp\/?p=19"},"modified":"2020-02-04T23:57:34","modified_gmt":"2020-02-05T05:57:34","slug":"arduino-controlling-a-servo-are-you-supplying-enough-power","status":"publish","type":"post","link":"https:\/\/horazmakes.com\/blog\/2015\/04\/26\/arduino-controlling-a-servo-are-you-supplying-enough-power\/","title":{"rendered":"Arduino controlling a servo: Are you supplying enough power?"},"content":{"rendered":"

Finding information about how to control a servo through Arduino boards is pretty easy. There are many resources on the web on this regard. However, I find that proper emphasis about how important it is supplying the correct amount of power for the servo to work properly can’t be found very often.<\/p>\n

Servos draw a considerable amount of power, so chances are that you need to supply power from an external power source.<\/p><\/blockquote>\n

I’ve been making some experiments with a non-high-quality servo that was working weird or not working at all sometimes. If I sent to it the instruction for turning more than 15 degrees (no matter what direction), the servo apparently went totally crazy, even my Arduino started to behave strange.<\/p>\n

The thing is that, as stated above, motors in general (a particular form of inductive loads) draw considerable amounts of power. If we wire a servo motor directly to an Arduino board, the amount of current available for the servo will be quite limited (about 400 mA or less), not enough for most applications.<\/p>\n

My advice is to always power servo motors controlled by Arduino with an external power supply.<\/p>\n

\"\"<\/p>\n

Remember to connect ground lead of external power supply to Arduino ground pin<\/p><\/blockquote>\n

Regards!<\/p>\n","protected":false},"excerpt":{"rendered":"

Finding information about how to control a servo through Arduino boards is pretty easy. There are many resources on the web on this regard. However, I find that proper emphasis about how important it is supplying the correct amount of power for the servo to work properly can’t be found very often. Servos draw a considerable amount of […]<\/p>\n","protected":false},"author":1,"featured_media":226,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,5,6,11,13],"tags":[25,34,59,66,67,71],"class_list":["post-187","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actuators","category-arduino","category-electronics","category-maker","category-motors","tag-arduino","tag-current","tag-power","tag-servo","tag-servomotor","tag-supply"],"_links":{"self":[{"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/posts\/187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/comments?post=187"}],"version-history":[{"count":2,"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/posts\/187\/revisions"}],"predecessor-version":[{"id":312,"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/posts\/187\/revisions\/312"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/media\/226"}],"wp:attachment":[{"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/media?parent=187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/categories?post=187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/horazmakes.com\/blog\/wp-json\/wp\/v2\/tags?post=187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}