{"id":10623,"date":"2025-09-09T13:04:58","date_gmt":"2025-09-09T11:04:58","guid":{"rendered":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/?page_id=10623"},"modified":"2025-09-09T20:25:32","modified_gmt":"2025-09-09T18:25:32","slug":"accelerometre","status":"publish","type":"page","link":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/steam\/recursos-steam\/accelerometre\/","title":{"rendered":"Acceler\u00f2metre"},"content":{"rendered":"<p data-start=\"254\" data-end=\"412\">Un <strong data-start=\"257\" data-end=\"274\">acceler\u00f2metre<\/strong> \u00e9s un sensor que mesura <strong data-start=\"299\" data-end=\"336\">com es mou o s\u2019inclina un objecte<\/strong>.<br data-start=\"337\" data-end=\"340\" \/>Est\u00e0 dins de la micro:bit i \u00e9s molt petit, gaireb\u00e9 com un gra d\u2019arr\u00f2s.<\/p>\n<h3 data-start=\"414\" data-end=\"434\">Com funciona?<\/h3>\n<ul data-start=\"435\" data-end=\"729\">\n<li data-start=\"435\" data-end=\"508\">\n<p data-start=\"437\" data-end=\"508\">Sempre hi ha una <strong data-start=\"454\" data-end=\"473\">for\u00e7a invisible<\/strong> que ens empeny: la <strong data-start=\"493\" data-end=\"505\">gravetat<\/strong>.<\/p>\n<\/li>\n<li data-start=\"509\" data-end=\"607\">\n<p data-start=\"511\" data-end=\"607\">Quan la micro:bit est\u00e0 quieta sobre la taula, el sensor mesura sobretot la gravetat cap avall.<\/p>\n<\/li>\n<li data-start=\"608\" data-end=\"729\">\n<p data-start=\"610\" data-end=\"729\">Quan inclinem la micro:bit, la direcci\u00f3 de la gravetat canvia dins del sensor, i aix\u00f2 fa que els <strong data-start=\"707\" data-end=\"726\">n\u00fameros canvi\u00efn<\/strong>.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"731\" data-end=\"752\">Els tres eixos<\/h3>\n<p data-start=\"753\" data-end=\"806\">El sensor t\u00e9 <strong data-start=\"766\" data-end=\"780\">tres eixos<\/strong> que fan servir lletres:<\/p>\n<ul data-start=\"808\" data-end=\"892\">\n<li data-start=\"808\" data-end=\"836\">\n<p data-start=\"810\" data-end=\"836\"><strong data-start=\"810\" data-end=\"815\">X<\/strong> \u2192 dreta \/ esquerra<\/p>\n<\/li>\n<li data-start=\"837\" data-end=\"866\">\n<p data-start=\"839\" data-end=\"866\"><strong data-start=\"839\" data-end=\"844\">Y<\/strong> \u2192 endavant \/ enrere<\/p>\n<\/li>\n<li data-start=\"867\" data-end=\"892\">\n<p data-start=\"869\" data-end=\"892\"><strong data-start=\"869\" data-end=\"874\">Z<\/strong> \u2192 amunt \/ avall<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"894\" data-end=\"942\">Els n\u00fameros poden ser <strong data-start=\"916\" data-end=\"939\">negatius o positius<\/strong>:<\/p>\n<ul data-start=\"943\" data-end=\"1031\">\n<li data-start=\"943\" data-end=\"982\">\n<p data-start=\"945\" data-end=\"982\">Positius \u2192 inclinaci\u00f3 en un sentit.<\/p>\n<\/li>\n<li data-start=\"983\" data-end=\"1031\">\n<p data-start=\"985\" data-end=\"1031\">Negatius \u2192 inclinaci\u00f3 en el sentit contrari.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1033\" data-end=\"1076\">On es fan servir els acceler\u00f2metres?<\/h3>\n<ul data-start=\"1077\" data-end=\"1290\">\n<li data-start=\"1077\" data-end=\"1131\">\n<p data-start=\"1079\" data-end=\"1131\">Al <strong data-start=\"1082\" data-end=\"1091\">m\u00f2bil<\/strong>, per girar la pantalla quan el gires.<\/p>\n<\/li>\n<li data-start=\"1132\" data-end=\"1210\">\n<p data-start=\"1134\" data-end=\"1210\">A les <strong data-start=\"1140\" data-end=\"1165\">consoles de videojocs<\/strong>, per controlar jocs movent el comandament.<\/p>\n<\/li>\n<li data-start=\"1211\" data-end=\"1290\">\n<p data-start=\"1213\" data-end=\"1290\">Als <strong data-start=\"1217\" data-end=\"1236\">cotxes i robots<\/strong>, per saber si s\u2019inclinen massa o per detectar xocs.<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1213\" data-end=\"1290\"><em style=\"color: #6f6f6f; font-family: inherit; font-size: 1em;\" data-start=\"1331\" data-end=\"1519\">\u201cL\u2019acceler\u00f2metre \u00e9s com un petit espia dins la micro:bit que diu cap a on est\u00e0 inclinada i si es mou. Gr\u00e0cies a ell podem controlar jocs, robots i veure moviments convertits en n\u00fameros.\u201d<\/em><\/p>\n<p data-start=\"1213\" data-end=\"1290\"><span style=\"font-size: 1.6875em; font-weight: bold;\">Un exemple<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 50%; text-align: center;\"><strong>Micro:bit A (Emisora)<\/strong><\/td>\n<td style=\"width: 50%; text-align: center;\"><strong>Micro:bit B (Receptora)<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%;\"><a href=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/A.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-10626\" src=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/A-1024x976.jpg\" alt=\"\" width=\"1024\" height=\"976\" srcset=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/A-1024x976.jpg 1024w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/A-300x286.jpg 300w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/A-768x732.jpg 768w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/A.jpg 1078w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/td>\n<td style=\"width: 50%;\"><a href=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/B-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-10636\" src=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/B-1-596x1024.jpg\" alt=\"\" width=\"394\" height=\"677\" srcset=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/B-1-596x1024.jpg 596w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/B-1-175x300.jpg 175w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/B-1-768x1319.jpg 768w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/B-1.jpg 811w\" sizes=\"auto, (max-width: 394px) 100vw, 394px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>La micro:bit <strong data-start=\"119\" data-end=\"136\">receptora (B)<\/strong> ha d\u2019estar connectada a l\u2019ordinador amb el cable USB i tenir el programa engegat.<br data-start=\"218\" data-end=\"221\" \/>Cada vegada que premem el <strong data-start=\"247\" data-end=\"257\">bot\u00f3 A<\/strong> a la micro:bit <strong data-start=\"273\" data-end=\"289\">emissora (A)<\/strong>, veurem a la pantalla de l\u2019ordinador com arriben els valors del sensor d\u2019inclinaci\u00f3 (acceler\u00f2metre) de la placa A.<\/p>\n<h3 data-start=\"107\" data-end=\"126\">Instruccions<\/h3>\n<ol data-start=\"128\" data-end=\"490\">\n<li data-start=\"128\" data-end=\"192\">\n<p data-start=\"131\" data-end=\"192\">Connecta la micro:bit <strong data-start=\"153\" data-end=\"158\">B<\/strong> a l\u2019ordinador amb el cable USB.<\/p>\n<\/li>\n<li data-start=\"193\" data-end=\"272\">\n<p data-start=\"196\" data-end=\"272\">Assegura\u2019t que el programa de la micro:bit <strong data-start=\"239\" data-end=\"244\">B<\/strong> est\u00e0 carregat i en marxa.<\/p>\n<\/li>\n<li data-start=\"273\" data-end=\"342\">\n<p data-start=\"276\" data-end=\"342\">Deixa la micro:bit <strong data-start=\"295\" data-end=\"300\">A<\/strong> sense cable, nom\u00e9s amb piles o bateria.<\/p>\n<\/li>\n<li data-start=\"343\" data-end=\"388\">\n<p data-start=\"346\" data-end=\"388\">Prem el <strong data-start=\"354\" data-end=\"364\">bot\u00f3 A<\/strong> a la micro:bit <strong data-start=\"380\" data-end=\"385\">A<\/strong>.<\/p>\n<\/li>\n<li data-start=\"389\" data-end=\"490\">\n<p data-start=\"392\" data-end=\"490\">Mira l\u2019ordinador: veur\u00e0s com apareixen els <strong data-start=\"435\" data-end=\"469\">valors del sensor d\u2019inclinaci\u00f3<\/strong> de la micro:bit A.<\/p>\n<\/li>\n<\/ol>\n<p><a href=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/Ordinador.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10630 aligncenter\" src=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/Ordinador-1022x1024.jpg\" alt=\"\" width=\"731\" height=\"732\" srcset=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/Ordinador-1022x1024.jpg 1022w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/Ordinador-300x300.jpg 300w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/Ordinador-150x150.jpg 150w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/Ordinador-768x770.jpg 768w, https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-content\/uploads\/usu311\/2025\/09\/Ordinador.jpg 1360w\" sizes=\"auto, (max-width: 731px) 100vw, 731px\" \/><\/a><\/p>\n<ul>\n<li data-start=\"957\" data-end=\"1044\">\n<p data-start=\"959\" data-end=\"1044\"><strong data-start=\"959\" data-end=\"988\">No busquem valors exactes<\/strong>, sin\u00f3 si s\u00f3n <strong data-start=\"1002\" data-end=\"1041\">grans o petits, positius o negatius<\/strong>.<\/p>\n<\/li>\n<li data-start=\"1045\" data-end=\"1216\">\n<p data-start=\"1047\" data-end=\"1057\">Exemple:<\/p>\n<ul data-start=\"1060\" data-end=\"1216\">\n<li style=\"list-style-type: none;\">\n<ul data-start=\"1060\" data-end=\"1216\">\n<li data-start=\"1060\" data-end=\"1109\">\n<p data-start=\"1062\" data-end=\"1109\">Si <strong data-start=\"1065\" data-end=\"1074\">x &gt; 0<\/strong> \u2192 est\u00e0 inclinada cap a la dreta.<\/p>\n<\/li>\n<li data-start=\"1112\" data-end=\"1148\">\n<p data-start=\"1114\" data-end=\"1148\">Si <strong data-start=\"1117\" data-end=\"1126\">x &lt; 0<\/strong> \u2192 est\u00e0 inclinada cap a l\u2019esquerra.<\/p>\n<\/li>\n<li data-start=\"1151\" data-end=\"1183\">\n<p data-start=\"1153\" data-end=\"1183\">Si <strong data-start=\"1156\" data-end=\"1165\">y &lt; 0<\/strong> \u2192 est\u00e0 inclinada cap endavant.<\/p>\n<\/li>\n<li data-start=\"1186\" data-end=\"1216\">\n<p data-start=\"1188\" data-end=\"1216\">Si <strong data-start=\"1191\" data-end=\"1200\">y &gt; 0<\/strong> \u2192 est\u00e0 inclinada cap enrere.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>En el nostre cas no considerarem el eix <strong>z<\/strong> ja que el cotxe \u00e9s mour\u00e0 en plano de dos eixos\u00a0 <strong>x,y<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un acceler\u00f2metre \u00e9s un sensor que mesura com es mou o s\u2019inclina un objecte.Est\u00e0 dins de la micro:bit i \u00e9s molt petit, gaireb\u00e9 com un gra d\u2019arr\u00f2s.<br \/>\nCom funciona?<\/p>\n<ul data-start=\"435\" data-end=\"729\">\n<li data-start=\"435\" data-end=\"508\">\nSempre hi ha una for\u00e7a invisible que ens empeny: la gravetat.\n<\/li>\n<li data-start=\"509\" data-end=\"607\">\nQuan la&hellip;  <a href=\"https:\/\/agora.xtec.cat\/ceipsesmondolo\/steam\/recursos-steam\/accelerometre\/\" title=\"Read Acceler\u00f2metre\">Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":36,"featured_media":0,"parent":8967,"menu_order":20,"comment_status":"closed","ping_status":"closed","template":"page-templates\/side-menu.php","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"class_list":["post-10623","page","type-page","status-publish","hentry"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-json\/wp\/v2\/pages\/10623","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-json\/wp\/v2\/users\/36"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-json\/wp\/v2\/comments?post=10623"}],"version-history":[{"count":6,"href":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-json\/wp\/v2\/pages\/10623\/revisions"}],"predecessor-version":[{"id":10638,"href":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-json\/wp\/v2\/pages\/10623\/revisions\/10638"}],"up":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-json\/wp\/v2\/pages\/8967"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/ceipsesmondolo\/wp-json\/wp\/v2\/media?parent=10623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}