{"id":822,"date":"2018-03-31T07:51:48","date_gmt":"2018-03-31T07:51:48","guid":{"rendered":"http:\/\/fambach.net\/?p=822"},"modified":"2021-11-14T13:20:19","modified_gmt":"2021-11-14T13:20:19","slug":"uno-wire-scannen","status":"publish","type":"post","link":"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/","title":{"rendered":"CodeShorty: Wire Scanning (Uno)"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Zweck\" title=\"Zweck\">Zweck<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Schaltung\" title=\"Schaltung\">Schaltung<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Bibliotheken\" title=\"Libraries\">Libraries<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Programm\" title=\"Programm\">Programm<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Quellocode\" title=\"Quellocode\">Quellocode<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Ausgabe\" title=\"Ausgabe\">Ausgabe<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Probleme\" title=\"Problems\">Problems<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Das_Wire_Modul_antwortet_nicht\" title=\"Das Wire Modul antwortet nicht\">Das Wire Modul antwortet nicht<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Fazit\" title=\"Conclusion\">Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/#Quellen\" title=\"Sources\">Sources<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Der I2c oder auch 2 Wire Bus genannt, arbeitet mit zwei Kabeln und&nbsp; theoretisch mit einer Geschwindigkeit von bis zu 5 Mbit\/s. F\u00fcr den Hobbybedarf mit Freiluftverkabelung sind es wahrscheinlich eher weniger.<\/p>\n\n\n\n<p>Der Uno hat den Wire-Anschluss am analogen Ausgang 4 und 5.\u00a0Zum Testen habe ich ein GY-68 Barometer angeschlossen welches auf Port 0x77 des I2C Busses arbeitet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Zweck\"><\/span>Zweck<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul><li>Herausfinden der Adresse eines Modules<\/li><li>Als erster Kommunikationstest<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Schaltung\"><\/span>Schaltung<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/fambach.net\/wp-content\/uploads\/2018\/03\/ScanWireSketch.png\"><img loading=\"lazy\" decoding=\"async\" width=\"963\" height=\"810\" src=\"https:\/\/fambach.net\/wp-content\/uploads\/2018\/03\/ScanWireSketch.png\" alt=\"\" class=\"wp-image-823\" srcset=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/03\/ScanWireSketch.png 963w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/03\/ScanWireSketch-300x252.png 300w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/03\/ScanWireSketch-768x646.png 768w\" sizes=\"(max-width: 599px) calc(100vw - 50px), (max-width: 767px) calc(100vw - 70px), (max-width: 991px) 429px, (max-width: 1199px) 637px, 354px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bibliotheken\"><\/span>Libraries<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Ich verwende die Wire Bibliothek, diese ist in Standard enthalten und muss nur per Include eingebunden werden.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Programm\"><\/span>Programm<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Das folgende Testprogramm habe ich mir aus einigen Beispielen zusammen &#8222;gesucht&#8220;. Es dient dazu, einfach mal zu schauen ob die aufgebaute Schaltung auch richtig verdrahtet ist.<br>\nDas Porgram geht alle Adressen des I2C Busses durch und klopft mal beim Empf\u00e4nger an. Antwortet dieser, wird der Port und am Schluss die Anzahl der gefundenen Teilnehmer angezeigt.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quellocode\"><\/span>Quellocode<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ausgabe\"><\/span>Ausgabe<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/fambach.net\/wp-content\/uploads\/2018\/03\/ConsoleWireScan.png\"><img loading=\"lazy\" decoding=\"async\" width=\"398\" height=\"330\" src=\"https:\/\/fambach.net\/wp-content\/uploads\/2018\/03\/ConsoleWireScan.png\" alt=\"\" class=\"wp-image-825\" srcset=\"https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/03\/ConsoleWireScan.png 398w, https:\/\/www.fambach.net\/wp-content\/uploads\/2018\/03\/ConsoleWireScan-300x249.png 300w\" sizes=\"(max-width: 599px) calc(100vw - 50px), (max-width: 767px) calc(100vw - 70px), (max-width: 991px) 429px, (max-width: 1199px) 637px, 354px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Probleme\"><\/span>Problems<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Das_Wire_Modul_antwortet_nicht\"><\/span>Das Wire Modul antwortet nicht<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Einfach mal SDA und SDC vertauschen.<\/p>\n\n\n\n<p>Sollte das Problem immer noch bestehen, mal veruschen Pullup Widerst\u00e4nde in die Schaltung einzubauen. Der Uno hat allerdings schon Pullups, sollte also eigentlich nicht n\u00f6tig sein.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fazit\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Wenn man mal nicht weiss ob ein Modul funktioniert oder welche Adresse es hat, ist der Scanner sehr hilfreich.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quellen\"><\/span>Sources<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/de.wikipedia.org\/wiki\/I%C2%B2C\">https:\/\/de.wikipedia.org\/wiki\/I%C2%B2C<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.mikrocontroller.net\/topic\/88806\">https:\/\/www.mikrocontroller.net\/topic\/88806<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/playground.arduino.cc\/Main\/I2cScanner\">https:\/\/playground.arduino.cc\/Main\/I2cScanner<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/gist.github.com\/tfeldmann\/5411375\">https:\/\/gist.github.com\/tfeldmann\/5411375<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Der I2c oder auch 2 Wire Bus genannt, arbeitet mit zwei Kabeln und&nbsp; theoretisch mit einer Geschwindigkeit von bis zu 5 Mbit\/s. F\u00fcr den Hobbybedarf mit Freiluftverkabelung sind es wahrscheinlich eher weniger. Der Uno hat den Wire-Anschluss am analogen Ausgang 4 und 5.\u00a0Zum Testen habe ich ein GY-68 Barometer angeschlossen welches auf Port 0x77 des &#8230;<\/p>\n<a href=\"https:\/\/www.fambach.net\/en\/uno-wire-scannen\/\" class=\"read-more-link\">Continue reading <span class=\"screen-reader-text\">\"CodeShorty: Wire Scannen (Uno)\"<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a>","protected":false},"author":1,"featured_media":825,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[178,180,184,539,222,171],"tags":[48,49,47],"modified_by":"sfambach","_links":{"self":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/822"}],"collection":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/comments?post=822"}],"version-history":[{"count":6,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/822\/revisions"}],"predecessor-version":[{"id":8082,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/posts\/822\/revisions\/8082"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/media\/825"}],"wp:attachment":[{"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/media?parent=822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/categories?post=822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fambach.net\/en\/wp-json\/wp\/v2\/tags?post=822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}