{"id":5568,"date":"2023-10-09T13:50:29","date_gmt":"2023-10-09T13:50:29","guid":{"rendered":"https:\/\/picockpit.com\/raspberry-pi\/?p=5568"},"modified":"2023-10-10T10:23:44","modified_gmt":"2023-10-10T10:23:44","slug":"raspberry-pi-5-has-a-real-time-clock-so-what","status":"publish","type":"post","link":"https:\/\/picockpit.com\/raspberry-pi\/pt\/o-raspberry-pi-5-tem-um-relogio-em-tempo-real-e-depois\/","title":{"rendered":"O Raspberry Pi 5 tem um rel\u00f3gio em tempo real. E da\u00ed?"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Real-Time-Clock-Title-Image-1024x576.png\" alt=\"Imagem do t\u00edtulo do rel\u00f3gio em tempo real\" class=\"wp-image-5574\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Real-Time-Clock-Title-Image-1024x576.png 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Real-Time-Clock-Title-Image-300x169.png 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Real-Time-Clock-Title-Image-768x432.png 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Real-Time-Clock-Title-Image-18x10.png 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Real-Time-Clock-Title-Image.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Uma das grandes caracter\u00edsticas do Raspberry Pi 5 que est\u00e1 a receber muita aten\u00e7\u00e3o \u00e9 o Rel\u00f3gio em Tempo Real (RTC). Atualmente, em quase todos os dispositivos, desde smartphones e computadores port\u00e1teis a m\u00e1quinas de lavar roupa e autom\u00f3veis, existe um RTC.<\/p>\n\n\n\n<p>Mas o Raspberry Pi 5 \u00e9 o primeiro produto emblem\u00e1tico a vir com um RTC. (<em><a href=\"https:\/\/datasheets.raspberrypi.com\/rp2040\/rp2040-datasheet.pdf\">O Pico tem um RTC!<\/a><\/em>)<\/p>\n\n\n\n<p>Tenho de ser honesto convosco por um segundo, n\u00f3s vendemos <a href=\"https:\/\/buyzero.de\/search?type=product&amp;options%5Bprefix%5D=last&amp;options%5Bunavailable_products%5D=last&amp;q=rtc\">alguns complementos RTC<\/a> para o Raspberry Pi na nossa empresa irm\u00e3. E nunca tinha sequer olhado para um de perto antes do an\u00fancio do Raspberry Pi 5.<\/p>\n\n\n\n<p>Nunca pensei muito neles. Quem precisa de um RTC? Eu certamente n\u00e3o precisei de um RTC em nenhum dos meus projectos.<\/p>\n\n\n\n<p>Por isso, fiquei um pouco surpreendido com o facto de as pessoas estarem t\u00e3o entusiasmadas. Por isso, decidi fazer alguma investiga\u00e7\u00e3o e chegar ao fundo da minha quest\u00e3o premente: Quem precisa realmente de um RTC num Raspberry Pi?<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/rpi51-1024x768.jpg\" alt=\"O nosso Raspberry Pi 5\" class=\"wp-image-5428\" style=\"width:480px;height:360px\" width=\"480\" height=\"360\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/rpi51-1024x768.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/rpi51-300x225.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/rpi51-768x576.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/rpi51-16x12.jpg 16w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/rpi51.jpg 1280w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">De rel\u00f3gios e cristais<\/h2>\n\n\n\n<p>Ent\u00e3o, antes de mais, o que \u00e9 um rel\u00f3gio em tempo real?<\/p>\n\n\n\n<p>Para o Raspberry Pi 5, o RTC \u00e9 um componente de hardware que mant\u00e9m o controlo da hora e da data actuais independentemente do processador principal. \u00c9 constitu\u00eddo por um circuito de rel\u00f3gio de baixo consumo. Pode alimentar este circuito com a fonte de alimenta\u00e7\u00e3o padr\u00e3o de 5V ou com a bateria do RTC.<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Screenshot-from-2023-10-09-14-41-45-1024x613.png\" alt=\"Bateria RTC do Raspberry Pi 5\" class=\"wp-image-5575\" style=\"width:459px;height:275px\" width=\"459\" height=\"275\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Screenshot-from-2023-10-09-14-41-45-1024x613.png 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Screenshot-from-2023-10-09-14-41-45-300x179.png 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Screenshot-from-2023-10-09-14-41-45-768x459.png 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Screenshot-from-2023-10-09-14-41-45-18x12.png 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Screenshot-from-2023-10-09-14-41-45.png 1028w\" sizes=\"auto, (max-width: 459px) 100vw, 459px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p>\u00c9 uma bateria Panasonic ML-2020 Lithium Manganese Dioxide e permite que o RTC funcione mesmo quando a Raspberry Pi est\u00e1 desligada. A bateria \u00e9 recarreg\u00e1vel, como \u00e9 \u00f3bvio.<\/p>\n\n\n\n<p>E, devo mencionar, a bateria tem uma almofada adesiva de dupla face. Assim, pode col\u00e1-la numa parede ou superf\u00edcie. Ou, at\u00e9 cabe dentro do estojo oficial.<\/p>\n\n\n\n<p>De qualquer forma, o m\u00f3dulo RTC inclui um oscilador de cristal que gera um sinal de rel\u00f3gio est\u00e1vel (32 kHz). Este sinal \u00e9 dividido para fornecer segundos, minutos, horas, dias, meses e anos exactos.<\/p>\n\n\n\n<p>Quando o Raspberry Pi 5 arranca, l\u00ea a informa\u00e7\u00e3o de data e hora do m\u00f3dulo RTC. <\/p>\n\n\n\n<p>O RTC continua a registar o tempo, garantindo que o sistema tem sempre uma refer\u00eancia precisa, mesmo que haja interrup\u00e7\u00f5es de energia ou rein\u00edcios. E isto funciona mesmo que n\u00e3o esteja ligado \u00e0 Internet ou a um servidor de protocolo de tempo de rede.<\/p>\n\n\n\n<p>No entanto, se estiver a contar apenas com a bateria, deve saber que esta durar\u00e1 provavelmente cerca de 6 meses.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RTC no RPi 5<\/h2>\n\n\n\n<p>O RTC no Raspberry Pi 5 \u00e9 controlado pelo circuito integrado de gest\u00e3o de energia na parte inferior esquerda da placa.<\/p>\n\n\n\n<p><\/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\/2023\/10\/Screenshot-from-2023-10-09-13-59-51.png\" alt=\"IC de gest\u00e3o de energia\" class=\"wp-image-5573\" style=\"width:394px;height:421px\" width=\"394\" height=\"421\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Screenshot-from-2023-10-09-13-59-51.png 565w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Screenshot-from-2023-10-09-13-59-51-281x300.png 281w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/Screenshot-from-2023-10-09-13-59-51-11x12.png 11w\" sizes=\"auto, (max-width: 394px) 100vw, 394px\" \/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<p>Este circuito integrado era, na verdade, um IC de gest\u00e3o de energia concebido \u00e0 medida para o Raspberry Pi 5. E vale a pena falar um pouco sobre ele em pormenor.<\/p>\n\n\n\n<p>\u00c9 controlado por I2C. <\/p>\n\n\n\n<p>Tem oito reguladores Buck Switched-Mode Power Supply e tr\u00eas reguladores Low Drop-Out. Os reguladores Buck SMPS s\u00e3o eficientes na redu\u00e7\u00e3o da tens\u00e3o de um n\u00edvel mais alto para um n\u00edvel mais baixo, enquanto os LDOs mant\u00eam uma sa\u00edda de tens\u00e3o est\u00e1vel com uma queda de tens\u00e3o m\u00ednima.<\/p>\n\n\n\n<p>Tamb\u00e9m controla o interrutor HDMI 5V, o USB-PD PHY, o bot\u00e3o de alimenta\u00e7\u00e3o e, claro, o RTC.<\/p>\n\n\n\n<p>Se olhar para a imagem acima, ver\u00e1 a pequena porta amarelada com a etiqueta \"BAT\" - que \u00e9 onde se liga a bateria do RTC.<\/p>\n\n\n\n<p>L\u00e1 se vai o hardware.<\/p>\n\n\n\n<p>Do lado do software, o RTC comunica com o sistema atrav\u00e9s da interface da caixa de correio do firmware. <\/p>\n\n\n\n<p>Al\u00e9m disso, o RTC pode muitas vezes ser programado para gerar alarmes ou sinais de despertar em alturas espec\u00edficas. <\/p>\n\n\n\n<p>Esta funcionalidade \u00e9 \u00fatil para ativar eventos ou acordar o Raspberry Pi de um estado de baixo consumo de energia para executar tarefas programadas. <\/p>\n\n\n\n<p>Al\u00e9m disso, o controlador RTC carrega-se automaticamente no arranque, seguindo as instru\u00e7\u00f5es normais do Linux <code data-no-translation=\"\">hwclock<\/code> comportamento. Assim, o driver RTC \u00e9 carregado automaticamente durante o arranque e comporta-se de acordo com o comportamento padr\u00e3o do rel\u00f3gio de hardware no Linux.<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.raspberrypi.com\/news\/introducing-raspberry-pi-5\/\"><img loading=\"lazy\" decoding=\"async\" width=\"669\" height=\"599\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/image-46.png\" alt=\"\" class=\"wp-image-5605\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/image-46.png 669w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/image-46-300x269.png 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/10\/image-46-13x12.png 13w\" sizes=\"auto, (max-width: 669px) 100vw, 669px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">E depois?<\/h2>\n\n\n\n<p>Agora chegamos ao verdadeiro motivo de todo este alarido. Porque tudo isto \u00e9 muito bonito e bom, mas o que \u00e9 que isso interessa?<\/p>\n\n\n\n<p>Bem, como j\u00e1 referi acima, um RTC \u00e9 importante para aplica\u00e7\u00f5es em que se pretende que o Pi adorme\u00e7a, acorde e volte a adormecer. Isto \u00e9 realmente valioso para a efici\u00eancia energ\u00e9tica.<\/p>\n\n\n\n<p>Em primeiro lugar, um dos exemplos mais \u00f3bvios que encontrei \u00e9 o das c\u00e2maras de seguran\u00e7a ou das c\u00e2maras de animais.<\/p>\n\n\n\n<p>\u00c9 poss\u00edvel ligar uma c\u00e2mara ao Pi e atribuir-lhe um sensor. Quando detecta movimento, pode acordar, tirar uma fotografia e depois voltar a dormir. Assim, isto seria \u00fatil para c\u00e2maras de p\u00e1ssaros e de esquilos ou mesmo para um projeto de conserva\u00e7\u00e3o da vida selvagem.<\/p>\n\n\n\n<p>Em segundo lugar, outra aplica\u00e7\u00e3o que tamb\u00e9m envolve animais seria uma c\u00e2mara de reconhecimento de gatos\/c\u00e3es para uma porta de animais de estima\u00e7\u00e3o.<\/p>\n\n\n\n<p>Tenho de admitir que, como n\u00e3o tenho animais de estima\u00e7\u00e3o, n\u00e3o sei bem como \u00e9 que isto funcionaria. Mas algu\u00e9m o sugeriu nos f\u00f3runs do Raspberry Pi - uma porta para animais de estima\u00e7\u00e3o que usa uma c\u00e2mara para reconhecer o animal antes de abrir. Acho que isto evitaria que animais aleat\u00f3rios entrassem em sua casa.<\/p>\n\n\n\n<p>Comenta abaixo se tens alguma pista sobre como isto pode funcionar!<\/p>\n\n\n\n<p>Em terceiro lugar, pode utilizar o RTC para sincronizar a hora numa frota de Raspberry Pis.<\/p>\n\n\n\n<p>Uma vez que os RTCs permitem a marca\u00e7\u00e3o de tempo mesmo quando o Raspberry Pi 5 est\u00e1 offline, \u00e9 poss\u00edvel garantir um registo de dados preciso. Penso que h\u00e1 provavelmente um n\u00famero ilimitado de aplica\u00e7\u00f5es cient\u00edficas e industriais para algo deste g\u00e9nero.<\/p>\n\n\n\n<p>Quarto, e finalmente, ajuda a garantir que o sistema operativo funciona corretamente, mesmo quando a sua Pi est\u00e1 offline. E embora este seja ultra mundano, \u00e9 talvez o caso mais importante em que as pessoas normais usar\u00e3o o RTC.<\/p>\n\n\n\n<p>Obviamente, se o rel\u00f3gio de um sistema operativo estiver incorreto ou come\u00e7ar a andar \u00e0 deriva, ent\u00e3o tudo pode correr mal. Assim, ao usar o RTC, o Raspberry Pi OS tamb\u00e9m vai funcionar melhor. N\u00e3o vai ter problemas de seguran\u00e7a potenciais, por exemplo.<\/p>\n\n\n\n<p>Al\u00e9m disso, o sistema operativo poder\u00e1 garantir carimbos de data\/hora, ficheiros de registo e tarefas agendadas.<\/p>\n\n\n\n<p>Tenho de admitir que, depois de ler mais sobre o assunto, fiquei convencido de que j\u00e1 deviam ter inclu\u00eddo um RTC nos produtos emblem\u00e1ticos h\u00e1 muito tempo.<\/p>\n\n\n\n<p>E n\u00e3o estou sozinho - o pr\u00f3prio Eben (aos 6:28 do v\u00eddeo abaixo) exclama: \"Parab\u00e9ns: depois de doze anos de Raspberry Pi, finalmente temos um RTC e um bot\u00e3o de energia!\"<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" hcb-fetch-image-from=\"https:\/\/www.youtube.com\/watch?v=ZswAW9A6wNE&amp;t=387s\" title=\"Arquitetura do Raspberry Pi 5 - James Adams e Eben Upton sobre a conce\u00e7\u00e3o do #Pi5\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/ZswAW9A6wNE?start=387&#038;feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Antes de ir, veja o nosso concurso!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Concurso e boletim informativo<\/h2>\n\n\n\n<p>Sabemos como \u00e9 frustrante ter de esperar at\u00e9 23 de outubro por um Raspberry Pi 5.<\/p>\n\n\n\n<p>Por isso, quisemos permitir-lhe brincar com um o mais rapidamente poss\u00edvel.<\/p>\n\n\n\n<p>Por isso, cri\u00e1mos um concurso: <em>Qual \u00e9 a coisa mais louca que se pode inventar para o Raspberry Pi 5?<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/picockpit.com\/raspberry-pi\/win-a-free-raspberry-pi-5\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"192\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Raspberry-Pi-5-Idea-Contest1-1024x192.jpg\" alt=\"Concurso Raspberr Pi 5\" class=\"wp-image-5443\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Raspberry-Pi-5-Idea-Contest1-1024x192.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Raspberry-Pi-5-Idea-Contest1-300x56.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Raspberry-Pi-5-Idea-Contest1-768x144.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Raspberry-Pi-5-Idea-Contest1-1536x288.jpg 1536w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Raspberry-Pi-5-Idea-Contest1-18x3.jpg 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Raspberry-Pi-5-Idea-Contest1.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p>Desde que a sua ideia n\u00e3o a destrua, pode enviar-nos a sua ideia e n\u00f3s vamos p\u00f4-la em pr\u00e1tica na nossa - e escrever um artigo sobre ela!<\/p>\n\n\n\n<p>O vencedor ser\u00e1 anunciado aqui e no <a href=\"https:\/\/buyzero.de\/\" target=\"_blank\" rel=\"noreferrer noopener\">buyzero.de<\/a> a 23 de outubro.<\/p>\n\n\n\n<p>A ideia vencedora (determinada por n\u00f3s) ganhar\u00e1 um kit completo Raspberry Pi 5 - incluindo uma fonte de alimenta\u00e7\u00e3o USB-C Power Delivery (PD) de 27W, uma caixa Raspberry Pi 5, um cart\u00e3o SD e um Raspberry Pi 5. Tudo com envio gratuito dentro da UE.<\/p>\n\n\n\n<p>O segundo classificado ganhar\u00e1 um Raspberry Pi 5 com envio gratuito para a UE.<\/p>\n\n\n\n<p>Por isso, n\u00e3o se esque\u00e7a de enviar as suas ideias - para mais informa\u00e7\u00f5es, consulte a seguinte liga\u00e7\u00e3o: <a href=\"https:\/\/picockpit.com\/raspberry-pi\/win-a-free-raspberry-pi-5\/\">GANHE UM RASPBERRY PI 5 GR\u00c1TIS<\/a>!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p>Assim, existem algumas aplica\u00e7\u00f5es que podem ser feitas com um RTC no Raspberry Pi 5!<\/p>\n\n\n\n<p>Tem alguma ideia para que vai utilizar o RTC? Comente abaixo!<\/p>\n\n\n\n<p>E n\u00e3o deixe de consultar os nossos outros artigos sobre o Raspberry Pi 5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/picockpit.com\/raspberry-pi\/raspberry-pi-4-vs-raspberry-pi-5\/\">Raspberry Pi 4 vs. Raspberry Pi 5<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/picockpit.com\/raspberry-pi\/a-first-look-at-raspberry-pi-5\/\">Um primeiro olhar sobre o Raspberry Pi 5<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/picockpit.com\/raspberry-pi\/keeping-raspberry-pi-5-cool\/\">Manter o Raspberry Pi 5 fresco<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/picockpit.com\/raspberry-pi\/doom-on-a-raspberry-pi-5\/\">DOOM num Raspberry Pi 5<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/picockpit.com\/raspberry-pi\/win-a-free-raspberry-pi-5\/\">Ganhe um Raspberry Pi 5 GR\u00c1TIS<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/picockpit.com\/raspberry-pi\/5-surprising-features-of-raspberry-pi-5\/\">5 Caracter\u00edsticas surpreendentes do Raspberry Pi 5<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/picockpit.com\/raspberry-pi\/raspberry-pi-5-micro-sd-card-speed\/\">Velocidade do cart\u00e3o Micro SD do Raspberry Pi 5<\/a><\/li>\n\n\n\n<li><a href=\"http:\/\/4 Frequently Asked Questions about Raspberry Pi 5\" target=\"_blank\" rel=\"noreferrer noopener\">4 Perguntas frequentes sobre o Raspberry Pi 5<\/a><\/li>\n<\/ul>\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%2Fpt%2Fo-raspberry-pi-5-tem-um-relogio-em-tempo-real-e-depois%2F&text=Raspberry%20Pi%205%20has%20a%20Real-Time%20Clock.%20So%20What%3F\" title=\"Compartilhar no X\" aria-label=\"Compartilhar no X\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; 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background-color:#0088cc; color:#0088cc\" target=\"_blank\"><span class=\"shariff-icon\" style=\"fill:#0088cc\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 32 32\"><path fill=\"#0088cc\" d=\"M30.8 6.5l-4.5 21.4c-.3 1.5-1.2 1.9-2.5 1.2L16.9 24l-3.3 3.2c-.4.4-.7.7-1.4.7l.5-7L25.5 9.2c.6-.5-.1-.8-.9-.3l-15.8 10L2 16.7c-1.5-.5-1.5-1.5.3-2.2L28.9 4.3c1.3-.5 2.3.3 1.9 2.2z\"\/><\/svg><\/span><span class=\"shariff-text\" style=\"color:#0088cc\">partilhar<\/span>&nbsp;<\/a><\/li><li class=\"shariff-button reddit shariff-nocustomcolor\" style=\"background-color:#ff5700\"><a href=\"https:\/\/www.reddit.com\/submit?url=https%3A%2F%2Fpicockpit.com%2Fraspberry-pi%2Fpt%2Fo-raspberry-pi-5-tem-um-relogio-em-tempo-real-e-depois%2F\" title=\"Compartilhar no Reddit\" aria-label=\"Compartilhar no Reddit\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#ff4500; color:#ff4500\" target=\"_blank\"><span class=\"shariff-icon\" style=\"fill:#ff4500\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path fill=\"#ff4500\" d=\"M440.3 203.5c-15 0-28.2 6.2-37.9 15.9-35.7-24.7-83.8-40.6-137.1-42.3L293 52.3l88.2 19.8c0 21.6 17.6 39.2 39.2 39.2 22 0 39.7-18.1 39.7-39.7s-17.6-39.7-39.7-39.7c-15.4 0-28.7 9.3-35.3 22l-97.4-21.6c-4.9-1.3-9.7 2.2-11 7.1L246.3 177c-52.9 2.2-100.5 18.1-136.3 42.8-9.7-10.1-23.4-16.3-38.4-16.3-55.6 0-73.8 74.6-22.9 100.1-1.8 7.9-2.6 16.3-2.6 24.7 0 83.8 94.4 151.7 210.3 151.7 116.4 0 210.8-67.9 210.8-151.7 0-8.4-.9-17.2-3.1-25.1 49.9-25.6 31.5-99.7-23.8-99.7zM129.4 308.9c0-22 17.6-39.7 39.7-39.7 21.6 0 39.2 17.6 39.2 39.7 0 21.6-17.6 39.2-39.2 39.2-22 .1-39.7-17.6-39.7-39.2zm214.3 93.5c-36.4 36.4-139.1 36.4-175.5 0-4-3.5-4-9.7 0-13.7 3.5-3.5 9.7-3.5 13.2 0 27.8 28.5 120 29 149 0 3.5-3.5 9.7-3.5 13.2 0 4.1 4 4.1 10.2.1 13.7zm-.8-54.2c-21.6 0-39.2-17.6-39.2-39.2 0-22 17.6-39.7 39.2-39.7 22 0 39.7 17.6 39.7 39.7-.1 21.5-17.7 39.2-39.7 39.2z\"\/><\/svg><\/span><span class=\"shariff-text\" style=\"color:#ff4500\">partilhar<\/span>&nbsp;<\/a><\/li><\/ul><\/div>","protected":false},"excerpt":{"rendered":"<p>Uma das grandes caracter\u00edsticas do Raspberry Pi 5 que est\u00e1 a receber muita aten\u00e7\u00e3o \u00e9 o Rel\u00f3gio em Tempo Real (RTC). Atualmente, em quase todos os dispositivos, desde smartphones e computadores port\u00e1teis a m\u00e1quinas de lavar roupa e autom\u00f3veis, existe um RTC. Mas o Raspberry Pi 5 \u00e9 o primeiro produto emblem\u00e1tico a vir com um RTC. (O...<\/p>","protected":false},"author":2,"featured_media":5574,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1962],"tags":[2020,606,2021,1972,447,187,1963,456,2018,1900,2019],"class_list":["post-5568","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-raspberry-pi-5","tag-gadget-mode","tag-linux","tag-pmic","tag-power-management-ic","tag-projects","tag-raspberry-pi","tag-raspberry-pi-5","tag-raspberry-pi-projects","tag-real-time-clock","tag-rtc","tag-sleep-mode"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Raspberry Pi 5 has a Real-Time Clock. So What? | PiCockpit<\/title>\n<meta name=\"description\" content=\"One feature of Raspberry Pi 5 that is getting attention is the Real-Time Clock (RTC). 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