{"id":117,"date":"2013-04-16T15:26:45","date_gmt":"2013-04-16T13:26:45","guid":{"rendered":"http:\/\/olresultat.se\/blog\/?p=117"},"modified":"2013-04-16T15:26:45","modified_gmt":"2013-04-16T13:26:45","slug":"buzzer-och-min-van-google","status":"publish","type":"post","link":"https:\/\/olresultat.se\/blog\/?p=117","title":{"rendered":"Buzzer och min v\u00e4n google"},"content":{"rendered":"<p>Jaha, d\u00e5 hade jag testat att s\u00e4tta in en buzzer i Raspen eftersom den saknar ljud fr\u00e5n b\u00f6rjan. En buzzer \u00e4r allts\u00e5 en liten h\u00f6gtalare som ser ut s\u00e5 h\u00e4r.<\/p>\n<p><a href=\"http:\/\/olresultat.se\/blog\/wp-content\/uploads\/2013\/04\/Buzzer.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-118\" alt=\"Buzzer\" src=\"http:\/\/olresultat.se\/blog\/wp-content\/uploads\/2013\/04\/Buzzer.png\" width=\"192\" height=\"195\" \/><\/a><\/p>\n<p>Man kopplar den till n\u00e5got som kallas GPIO i Raspen. S\u00e5 l\u00e5ngt allt v\u00e4l. Den pep som den skulle. Vad g\u00f6r man sen? Jo, man best\u00e4ller 20 stycken nya samt lite kabel med f\u00e4rdiga f\u00e4sten p\u00e5 f\u00f6r att koppla det till alla rasparna man har. Paketet kommer fr\u00e5n Amerikat, man sliter upp det, kopplar in den, bootar raspen&#8230;..och&#8230;.inte ett ljud&#8230; Hmmm&#8230; Ahha, byter pinnarna p\u00e5 den&#8230;. Inte ett ljud&#8230; Prova en annan&#8230; Inte ett ljud&#8230; Det \u00e4r h\u00e4r min v\u00e4n google kommer in.<\/p>\n<p>Vad l\u00e4r man sig kv\u00e4llen den 15 april 2013 som man aldrig hade vetat att man skulle beh\u00f6va l\u00e4ra sig? Jo, det finns buzzers och det finns piezo buzzers&#8230; Vad \u00e4r d\u00e5 skillnaden? Jo, en buzzer har inbyggd oscillator som s\u00e4tter fart p\u00e5 h\u00f6gtalarmembranet av sig sj\u00e4lv s\u00e5 fort den f\u00e5r sina 3 volt. En piezo buzzer har ingen inbyggd oscillator, s\u00e5 d\u00e4r m\u00e5ste man oscillera str\u00f6mmen sj\u00e4lv! D\u00e4rav tystnaden&#8230; Men men, som sagt, min v\u00e4n google och lite shell-programmering mm s\u00e5 pep den ur sig en melodi till och med \ud83d\ude42 Nu har raspen st\u00f6d f\u00f6r b\u00e5da buzzrarna \ud83d\ude42<\/p>\n<p>Har \u00e4ven lagt in st\u00f6d f\u00f6r att den spelar sin trudelutt inte bara n\u00e4r raspen \u00e4r klar att ta emot st\u00e4mplingar, utan \u00e4ven n\u00e4r f\u00f6rsta st\u00e4mplingen har g\u00e5tt fram p\u00e5 varje SI-master som \u00e4r kopplad till den. S\u00e5 se till att provst\u00e4mpla alla SI-mastrarna vid uts\u00e4ttning, annars kommer f\u00f6rsta l\u00f6paren att f\u00e5 en liten melodi som st\u00e4mplingsignal \ud83d\ude42<\/p>\n<p>\/\/Oskar<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jaha, d\u00e5 hade jag testat att s\u00e4tta in en buzzer i Raspen eftersom den saknar ljud fr\u00e5n b\u00f6rjan. En buzzer \u00e4r allts\u00e5 en liten h\u00f6gtalare som ser ut s\u00e5 h\u00e4r. Man kopplar den till n\u00e5got som kallas GPIO i Raspen. S\u00e5 l\u00e5ngt allt v\u00e4l. Den pep som den skulle. Vad g\u00f6r man sen? Jo, man [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-117","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=\/wp\/v2\/posts\/117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=117"}],"version-history":[{"count":1,"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=\/wp\/v2\/posts\/117\/revisions"}],"predecessor-version":[{"id":119,"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=\/wp\/v2\/posts\/117\/revisions\/119"}],"wp:attachment":[{"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/olresultat.se\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}