{"id":2537,"date":"2022-06-27T13:28:54","date_gmt":"2022-06-27T13:28:54","guid":{"rendered":"https:\/\/picockpit.com\/raspberry-pi\/?p=2537"},"modified":"2023-08-28T11:48:10","modified_gmt":"2023-08-28T11:48:10","slug":"raspberry-pi-project-ideas-e-ink-calendar-clock","status":"publish","type":"post","link":"https:\/\/picockpit.com\/raspberry-pi\/sv\/raspberry-pi-project-ideas-e-ink-kalendarium-klocka\/","title":{"rendered":"Raspberry Pi projektid\u00e9er: kalender och klocka med e-bl\u00e4ck"},"content":{"rendered":"<p>Idag tar vi en titt p\u00e5 tv\u00e5 riktigt lysande Raspberry Pi-projekt - en kalender med e-bl\u00e4ck och en klocka med e-bl\u00e4ck!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">E-papperskalender<\/h2>\n\n\n\n<iframe loading=\"lazy\" id=\"reddit-embed\" src=\"https:\/\/www.redditmedia.com\/r\/raspberry_pi\/comments\/v4ub12\/epaper_calendar_using_rpi_zero_w_caldav_support\/?ref_source=embed&amp;ref=share&amp;embed=true\" sandbox=\"allow-scripts allow-same-origin allow-popups\" style=\"border: none;\" height=\"620\" width=\"640\" scrolling=\"no\"><\/iframe>\n\n\n\n<p>Reddit-anv\u00e4ndaren Beaverknighterino sa att han var \"fascinerad av E-pappersprojekt s\u00e5 jag best\u00e4mde mig till slut f\u00f6r att g\u00f6ra ett f\u00f6r min arbetskalender.\"<\/p>\n\n\n\n<p>De material som Beaverknighterino anv\u00e4nde \u00e4r f\u00f6ljande:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Waveshare 7,5\" S\/W 800\u00d7480 E-papper<\/li>\n\n\n\n<li>Raspberry Pi Zero W<\/li>\n\n\n\n<li>Xiaomi 10000mAH Power bank<\/li>\n\n\n\n<li>IKEA HOVSTA Tavelram<\/li>\n<\/ol>\n\n\n\n<p>Beaverknighterino n\u00e4mnde att projektet gjordes lite sv\u00e5rare. Detta beror p\u00e5 att arbetskalendern anv\u00e4nder CalDAV och att m\u00e5nga bibliotek med \u00f6ppen k\u00e4llkod endast st\u00f6der Google eller iCloud.<\/p>\n\n\n\n<p>F\u00f6r n\u00e4rvarande f\u00e5r systemet bara mindre \u00e4n fem dagars batteritid innan det st\u00e4ngs av. <\/p>\n\n\n\n<p>Detta \u00e4r dock ocks\u00e5 resultatet av en icke-optimerad kod, som enligt Beaverknighterino kommer att f\u00f6rb\u00e4ttras i n\u00e4sta iteration.<\/p>\n\n\n\n<p>E-ink-sk\u00e4rmar \u00e4r mycket str\u00f6msn\u00e5la eftersom den st\u00f6rsta delen av str\u00f6mf\u00f6rbrukningen sker n\u00e4r du uppdaterar sk\u00e4rmen med nytt inneh\u00e5ll. N\u00e4r du har st\u00e4llt in inneh\u00e5llet sjunker str\u00f6mf\u00f6rbrukningen till noll.<\/p>\n\n\n\n<p>Problemet h\u00e4r \u00e4r att Pi Zero W h\u00e5lls ig\u00e5ng f\u00f6r att uppdatera displayen efter varje m\u00f6testillf\u00e4lle och vid midnatt. <\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>KLICKA H\u00c4R: <a href=\"https:\/\/picockpit.com\/raspberry-pi\/wp-admin\/post.php?post=1583&amp;action=edit\">Raspberry Pi Zero 2 tips och tricks f\u00f6r str\u00f6moptimering<\/a><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">e-Ink klocka<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/preview.redd.it\/3h5waithq5791.jpg?width=640&amp;crop=smart&amp;auto=webp&amp;s=a62ba4c49ff86bce898a94be6e9af8064b2b6dbc\" alt=\"\" style=\"width:419px;height:555px\" width=\"419\" height=\"555\"\/><figcaption class=\"wp-element-caption\">Waveshare 2,13\u2033 e-Ink-display som visar klocka och datum . <a href=\"https:\/\/www.reddit.com\/r\/raspberry_pi\/comments\/vi2xow\/i_made_a_basic_clock_with_a_pi_zero_and_an_eink\/\" rel=\"nofollow\">Foto fr\u00e5n u\/tttpp \/ reddit<\/a><\/figcaption><\/figure>\n<\/div>\n\n\n<p>H\u00e4r \u00e4r ett annat projekt som anv\u00e4nder Raspberry Pi Zero.<\/p>\n\n\n\n<p>Till skillnad fr\u00e5n kalendern ovan som drivs av ett batteripaket, drivs denna via USB, s\u00e5 det finns inga problem med batteritiden.<\/p>\n\n\n\n<p>Diskussionen kring klockan \u00e4r f\u00f6rmodligen den mest intressanta. En relevant fr\u00e5ga \u00e4r om en e-ink-display kan visa sekunder. H\u00e4r \u00e4r en viktig video:<\/p>\n\n\n\n<div style=\"width: 100%; height: 0px; position: relative; padding-bottom: 177.778%;\"><iframe loading=\"lazy\" src=\"https:\/\/streamable.com\/e\/qevfjr\" frameborder=\"0\" width=\"100%\" height=\"100%\" allowfullscreen=\"\" style=\"width: 100%; height: 100%; position: absolute;\"><\/iframe><\/div>\n\n\n\n<p>Svagheten med en e-ink-sk\u00e4rm \u00e4r att den har en uppdateringstid p\u00e5 en sekund. Det g\u00f6r det mycket st\u00f6rande om du m\u00e5ste uppdatera varje sekund och det kanske inte \u00e4r s\u00e5 bra. <\/p>\n\n\n\n<p>Men det \u00e4r priset f\u00f6r en ultraeffektiv sk\u00e4rm.<\/p>\n\n\n\n<p>En annan intressant diskussion \u00e4r huruvida Raspberry Pi Pico skulle vara ett bra substitut f\u00f6r en Pi Zero eller inte. Speciellt med tanke p\u00e5 att den \u00e4r billigare och mycket l\u00e4ttare att hitta i lager.<\/p>\n\n\n\n<p>Slutsatsen var att ja, det kunde man, men...<\/p>\n\n\n\n<p>Men problemet \u00e4r att Pico inte har samma funktioner som Pi Zero. <\/p>\n\n\n\n<p>D\u00e4rf\u00f6r m\u00e5ste du l\u00e4gga till n\u00e5gra moduler - <a href=\"https:\/\/buyzero.de\/products\/mini-rtc-module-for-raspberry-pi\">antingen en modul f\u00f6r realtidsklocka<\/a> eller n\u00e5got som ger den tillg\u00e5ng till internet.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/06\/image-17.png\" alt=\"\" class=\"wp-image-2541\" style=\"width:442px;height:397px\" width=\"442\" height=\"397\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/06\/image-17.png 500w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/06\/image-17-300x269.png 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2022\/06\/image-17-13x12.png 13w\" sizes=\"auto, (max-width: 442px) 100vw, 442px\" \/><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/buyzero.de\/products\/mini-rtc-module-for-raspberry-pi\">En mini RTC-modul f\u00f6r Raspberry Pi, tillg\u00e4nglig fr\u00e5n denna l\u00e4nk.<\/a><\/figcaption><\/figure>\n<\/div>\n\n\n<p>Inte f\u00f6r att Pi Zero har en realtidsklocka ombord, men du f\u00e5r \u00e5tminstone WiFi (med Zero W-varianten). S\u00e5 i grund och botten \u00e4r Zero \u00f6verkill men det \u00e4r bekv\u00e4mt.<\/p>\n\n\n\n<p>u\/tttpp har delat med sig av sin <a href=\"https:\/\/pastebin.com\/VwYQcFD3\">kod<\/a> och <a href=\"https:\/\/www.reddit.com\/user\/tttpp\/\" rel=\"nofollow\">Instruktioner<\/a> f\u00f6r Waveshare 2.13\u2033 display v2:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Installera pi lite utan GUI p\u00e5 den<\/li>\n\n\n\n<li>Installera python3 och tmux p\u00e5 den med hj\u00e4lp av SSH<\/li>\n\n\n\n<li>F\u00f6lj alla instruktioner fr\u00e5n\u00a0<a href=\"https:\/\/www.waveshare.com\/wiki\/2.13inch_e-Paper_HAT\" target=\"_blank\" rel=\"noreferrer noopener\">h\u00e4r f\u00f6r att installera bibliotek och exempel<\/a>\u00a0f\u00f6r att st\u00e4lla in e-ink-displayen<\/li>\n\n\n\n<li>Skapa en ny mapp i den mapp du laddade ner fr\u00e5n waveshare (d\u00e4r mapparna lib, exempel etc. finns) och kopiera min&nbsp;<a href=\"https:\/\/pastebin.com\/VwYQcFD3\" target=\"_blank\" rel=\"noreferrer noopener\">kod<\/a>&nbsp;d\u00e4r<\/li>\n\n\n\n<li>Skapa en tmux-session s\u00e5 att skriptet kan k\u00f6ras p\u00e5 obest\u00e4md tid i bakgrunden och starta det med python3 (s\u00f6kv\u00e4g till koden) och avsluta tmux-sessionen<\/li>\n<\/ul>\n\n\n\n<p>Obs: den h\u00e4r koden \u00e4r specifikt f\u00f6r en Waveshare 2,13 tums sk\u00e4rm V2. Det \u00e4r ganska enkelt att byta mellan versioner, du beh\u00f6ver bara k\u00f6ra varje exempel tills ett fungerar (som har samma uppl\u00f6sning som den e-bl\u00e4ck du har), jag kommer att g\u00f6ra en ordentlig handledning och st\u00e4da upp koden snart.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Har du ett intressant projekt?<\/h2>\n\n\n\n<p>Du kan se fler projekt som detta i v\u00e5r serie Paragon Projects <a href=\"https:\/\/picockpit.com\/raspberry-pi\/category\/paragon-projects\/\">h\u00e4r<\/a>.<\/p>\n\n\n\n<p>Om du k\u00e4nner till ett intressant projekt, l\u00e4mna en kommentar nedan \ud83d\udc47<\/p>\n\n\n\n<p>Om du gillar den h\u00e4r serien, prenumerera p\u00e5 v\u00e5rt nyhetsbrev nedan \ud83d\udc47<\/p>\n<div class=\"shariff shariff-align-center shariff-widget-align-left shariff-buttonstretch\"><ul class=\"shariff-buttons theme-white orientation-horizontal buttonsize-medium\"><li class=\"shariff-button twitter shariff-nocustomcolor\" style=\"background-color:#595959\"><a href=\"https:\/\/twitter.com\/share?url=https%3A%2F%2Fpicockpit.com%2Fraspberry-pi%2Fsv%2Fraspberry-pi-project-ideas-e-ink-kalendarium-klocka%2F&text=Raspberry%20Pi%20project%20ideas%3A%20e-ink%20calendar%20and%20clock\" title=\"Dela p\u00e5 X\" aria-label=\"Dela p\u00e5 X\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; 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E-papperskalender Reddit-anv\u00e4ndaren Beaverknighterino sa att han var \"fascinerad av E-pappersprojekt s\u00e5 jag best\u00e4mde mig till slut f\u00f6r att g\u00f6ra ett till min arbetskalender.\" De material som Beaverknighterino anv\u00e4nde \u00e4r f\u00f6ljande: Beaverknighterino n\u00e4mnde att projektet...<\/p>","protected":false},"author":2,"featured_media":2544,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[220],"tags":[621,620,623,486,447,187,538,622],"class_list":["post-2537","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-raspberry-pi-projects","tag-e-ink-clock","tag-e-paper-calendar","tag-pi-projects","tag-project","tag-projects","tag-raspberry-pi","tag-raspberry-pi-zero","tag-waveshare-2-13-inch-display-v2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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