{"id":101849,"date":"2021-10-28T16:22:44","date_gmt":"2021-10-28T14:22:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlena-novaya-plata-raspberry-pi-zero-2-w"},"modified":"2021-10-28T16:22:44","modified_gmt":"2021-10-28T14:22:45","slug":"predstavlena-novaya-plata-raspberry-pi-zero-2-w","status":"publish","type":"post","link":"https:\/\/prohoster.info\/no\/blog\/news\/predstavlena-novaya-plata-raspberry-pi-zero-2-w","title":{"rendered":"Den nye Raspberry Pi Zero 2 W-kortet er presentert.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Raspberry Pi-prosjektet har annonsert lanseringen av den nye generasjonen Raspberry Pi Zero W-kortet, som kombinerer kompakte dimensjoner med st\u00f8tte for Bluetooth og Wi-Fi. Den nye modellen, Raspberry Pi Zero 2 W, er laget i samme mini-formfaktor (65 x 30 x 5 mm), som er omtrent halvannet s\u00e5 stor som en vanlig Raspberry Pi. Salget har s\u00e5 langt bare startet i Storbritannia, EU, USA, Canada og Hongkong; levering til andre land vil bli \u00e5pnet etter at den tr\u00e5dl\u00f8se modulen har best\u00e5tt sertifisering. Prisen for Raspberry Pi Zero 2 W er 15 USD (til sammenligning er prisen for Raspberry Pi Zero W $10, mens Raspberry Pi Zero koster $5, og produksjonen av de billigere kortene vil fortsette).      <center><img decoding=\"async\" alt=\"Den nye Raspberry Pi Zero 2 W-kortet er presentert.\" src=\"\/wp-content\/uploads\/2021\/10\/ca216de7cea17f9586b299bddfcd483c.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>Det viktigste kjennetegnet ved den nye modellen av Raspberry Pi Zero er overgangen til \u00e5 bruke SoC Broadcom BCM2710A1, som ligner p\u00e5 den som brukes i Raspberry Pi 3-kortene (i forrige generasjon av Zero ble SoC Broadcom BCM2835 brukt, som i den f\u00f8rste Raspberry Pi). I motsetning til Raspberry Pi 3 har prosessorfrekvensen blitt redusert fra 1,4 GHz til 1 GHz for \u00e5 redusere str\u00f8mforbruket. If\u00f8lge en flertr\u00e5det sysbench-test har oppgraderingen av SoC \u00f8kt kortets ytelse med fem ganger (den nye SoC har en firekjerners 64-bits CPU Arm Cortex-A53 i stedet for en enkeltkjerners 32-bits ARM11 ARM1176JZF-S).          <\/p>\n<p>Som i den forrige versjonen tilbyr Raspberry Pi Zero 2 W 512 MB RAM, en Mini-HDMI-port, to Micro-USB-porter (USB 2.0 med OTG og en port for str\u00f8mforsyning), en microSD-slot, en 40-pins GPIO-kontakt (som ikke er loddet), utganger for sammensatt video og kamera (CSI-2). Kortet har en tr\u00e5dl\u00f8s chip som st\u00f8tter Wi-Fi 802.11 b\/g\/n (2.4 GHz), Bluetooth 4.2 og Bluetooth Low Energy (BLE). For \u00e5 oppn\u00e5 FCC-sertifisering og beskytte mot eksterne forstyrrelser er den tr\u00e5dl\u00f8se chippens metallhus skjult p\u00e5 det nye kortet.     <\/p>\n<p>Den integrerte GPU i SoC st\u00f8tter OpenGL ES 1.1 og 2.0, og gir midler for akselerering av videodekoding i H.264 og MPEG-4 formater med 1080p30 kvalitet, samt koding i H.264-format, noe som utvider bruksomr\u00e5det for kortet i forskjellige multimediaenheter og smarthussystemer. Dessverre er st\u00f8rrelsen p\u00e5 RAM begrenset til 512 MB og kan ikke utvides p\u00e5 grunn av fysiske begrensninger i kortst\u00f8rrelsen. For \u00e5 levere 1 GB RAM ville det v\u00e6rt n\u00f8dvendig med en komplisert flerlagkonstruksjon, noe utviklerne forel\u00f8pig ikke er klare for.          <center>  <div class=\"youtube-placeholder\" data-id=\"V2frBYX62LU\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/V2frBYX62LU\/hqdefault.jpg\" alt=\"Spill video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div>  <\/center>    <\/p>\n<p>Den st\u00f8rste utfordringen ved design av Raspberry Pi Zero 2 W-kortet var \u00e5 l\u00f8se problemet med plassering av LPDDR2 SDRAM. I f\u00f8rste generasjon ble minnet plassert i et ekstra lag over SoC-brikken, implementert ved hjelp av PoP-teknologi (package-on-package), men i de nye Broadcom-brikkene var det ikke mulig \u00e5 bruke denne metoden p\u00e5 grunn av st\u00f8rrelsen p\u00e5 SoC. For \u00e5 l\u00f8se dette problemet ble det utviklet en spesialutgave av brikken sammen med Broadcom, der minnet ble integrert i SoC.   <center><img decoding=\"async\" alt=\"Den nye Raspberry Pi Zero 2 W-kortet er presentert.\" src=\"\/wp-content\/uploads\/2021\/10\/82c45731c60677515fc651a443c9efe7.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <\/p>\n<p>En annen utfordring var den \u00f8kte varmeutviklingen p\u00e5 grunn av den kraftigere prosessoren. Problemet ble l\u00f8st ved \u00e5 legge til tykke kobberlag p\u00e5 kortet for \u00e5 lede vekk og spre varmen fra prosessoren. Dette f\u00f8rte til en merkbar \u00f8kning i vekten p\u00e5 kortet, men l\u00f8sningen ble ansett som vellykket, og det viste seg \u00e5 v\u00e6re tilstrekkelig for \u00e5 unng\u00e5 overoppheting under en tidsubegrenset stresstest av line\u00e6r algebra, LINPACK, ved en omgivelsestemperatur p\u00e5 20 grader.    <\/p>\n<p>Av konkurrerende enheter er det kinesiske kortet Orange Pi Zero Plus2 som er n\u00e6rmest Raspberry Pi Zero 2 W. Dette kortet m\u00e5ler 46 x 48 mm og selges for 35 USD med 512 MB RAM og Allwinner H3-brikke. Orange Pi Zero Plus2 er utstyrt med 8 GB EMMC Flash, har en fullstendig HDMI-port, TF-kortspor, USB OTG, samt kontakter for tilkobling av mikrofon, infrar\u00f8d mottaker (IR) og to ekstra USB-porter. Kortet er utstyrt med en firekjernet Allwinner H5-prosessor (Cortex-A53) med Mali450 GPU eller Allwinner H3 (Cortex-A7) med Mali400MP2 GPU. I stedet for en 40-pins GPIO leveres det med en forkortet 26-pins kontakt som er kompatibel med Raspberry Pi B+. Det finnes ogs\u00e5 et mindre kraftig kort, Orange Pi Zero 2, men dette leveres med 1 GB RAM og en Ethernet-port i tillegg til Wi-Fi.<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56057\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u043e\u0435\u043a\u0442 Raspberry Pi \u043e\u0431\u044a\u044f\u0432\u0438\u043b \u043e \u043f\u043e\u0441\u0442\u0443\u043f\u043b\u0435\u043d\u0438\u0438 \u0432 \u043f\u0440\u043e\u0434\u0430\u0436\u0443 \u043d\u043e\u0432\u043e\u0433\u043e \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u044f \u043f\u043b\u0430\u0442\u044b Raspberry Pi Zero W, \u0441\u043e\u0447\u0435\u0442\u0430\u044e\u0449\u0435\u0439 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u044b\u0435 \u0440\u0430\u0437\u043c\u0435\u0440\u044b \u0438 \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0438 Bluetooth \u0438 Wi-Fi. \u041d\u043e\u0432\u0430\u044f \u043c\u043e\u0434\u0435\u043b\u044c Raspberry Pi Zero 2 W \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0430 \u0432 \u0442\u043e\u043c \u0436\u0435 \u043c\u0438\u043d\u0438\u0430\u0442\u044e\u0440\u043d\u043e\u043c \u0444\u043e\u0440\u043c-\u0444\u0430\u043a\u0442\u043e\u0440\u0435 (65 x 30 x 5 \u043c\u043c), \u0442.\u0435. \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u0432 \u0434\u0432\u0430 \u0440\u0430\u0437\u0430 \u043c\u0435\u043d\u044c\u0448\u0435 \u043e\u0431\u044b\u0447\u043d\u043e\u0433\u043e Raspberry Pi. \u041f\u0440\u043e\u0434\u0430\u0436\u0438 \u043f\u043e\u043a\u0430 \u043d\u0430\u0447\u0430\u043b\u0438\u0441\u044c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":101850,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-101849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.5 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u043e\u0435\u043a\u0442 Raspberry Pi \u043e\u0431\u044a\u044f\u0432\u0438\u043b \u043e \u043f\u043e\u0441\u0442\u0443\u043f\u043b\u0435\u043d\u0438\u0438 \u0432 \u043f\u0440\u043e\u0434\u0430\u0436\u0443 \u043d\u043e\u0432\u043e\u0433\u043e \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u044f \u043f\u043b\u0430\u0442\u044b Raspberry Pi Zero W, \u0441\u043e\u0447\u0435\u0442\u0430\u044e\u0449\u0435\u0439 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