{"id":16,"date":"2017-08-26T00:54:27","date_gmt":"2017-08-25T22:54:27","guid":{"rendered":"https:\/\/www.huwig.de\/?p=16"},"modified":"2018-01-02T01:24:33","modified_gmt":"2018-01-02T00:24:33","slug":"correct-connection-of-an-rfid-rc522-to-a-raspberry-pi","status":"publish","type":"post","link":"https:\/\/www.huwig.de\/en\/de\/2017\/08\/26\/correct-connection-of-an-rfid-rc522-to-a-raspberry-pi\/","title":{"rendered":"Correct connection of an RFID-RC522 to a Raspberry PI"},"content":{"rendered":"<p>I am currently building a simple audio book player for my kids. One part of are RFID chips for every audio book. An RFID-RF522 reader detects them and plays the corresponding audio book.<\/p>\n<p>Connecting the RFID-RC522 board was more difficult than I first thought as most tutorials on the Internet have an incorrect pinout for current Raspberries. Those that are correct lack the interrupt line which causes a high power consumtion.<\/p>\n<p>With this schematic the connection is simple and compact:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-18 size-large\" src=\"https:\/\/www.huwig.de\/wp-content\/uploads\/sites\/2\/2018\/01\/RaspberryPI-RFID-RC522_Steckplatine-1024x625.png\" alt=\"\" width=\"660\" height=\"403\" srcset=\"https:\/\/www.huwig.de\/en\/wp-content\/uploads\/sites\/2\/2018\/01\/RaspberryPI-RFID-RC522_Steckplatine-1024x625.png 1024w, https:\/\/www.huwig.de\/en\/wp-content\/uploads\/sites\/2\/2018\/01\/RaspberryPI-RFID-RC522_Steckplatine-300x183.png 300w, https:\/\/www.huwig.de\/en\/wp-content\/uploads\/sites\/2\/2018\/01\/RaspberryPI-RFID-RC522_Steckplatine-768x469.png 768w, https:\/\/www.huwig.de\/en\/wp-content\/uploads\/sites\/2\/2018\/01\/RaspberryPI-RFID-RC522_Steckplatine.png 1371w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/p>\n<p>It allows to use interrupts which enables to write low power applications. You can find\u00a0<a href=\"http:\/\/fritzing.org\/projects\/rfid-rc522-on-raspberry-with-interrupts\">the schematics at fritzing.org<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I am currently building a simple audio book player for my kids. One part of are RFID chips for every audio book. An RFID-RF522 reader detects them and plays the corresponding audio book. Connecting the RFID-RC522 board was more difficult than I first thought as most tutorials on the Internet have an incorrect pinout for &hellip; <a href=\"https:\/\/www.huwig.de\/en\/de\/2017\/08\/26\/correct-connection-of-an-rfid-rc522-to-a-raspberry-pi\/\" class=\"more-link\"><span class=\"screen-reader-text\">Correct connection of an RFID-RC522 to a Raspberry PI<\/span> weiterlesen<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2],"tags":[3,4],"class_list":["post-16","post","type-post","status-publish","format-standard","hentry","category-hardware","tag-raspberry-pi","tag-rfid"],"_links":{"self":[{"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/posts\/16","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/comments?post=16"}],"version-history":[{"count":6,"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/posts\/16\/revisions"}],"predecessor-version":[{"id":25,"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/posts\/16\/revisions\/25"}],"wp:attachment":[{"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/media?parent=16"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/categories?post=16"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huwig.de\/en\/wp-json\/wp\/v2\/tags?post=16"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}