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Pi","families.raspberry-pi.description",[868,873,878],{"id":14,"publisher":11,"title":869,"documentType":870,"url":871,"version":872,"accessedDate":19},"Raspberry Pi Hardware Documentation — GPIO and the 40-Pin Header","reference_manual","https:\u002F\u002Fwww.raspberrypi.com\u002Fdocumentation\u002Fcomputers\u002Fraspberry-pi.html#gpio-and-the-40-pin-header","Release 2024",{"id":15,"publisher":11,"title":874,"documentType":875,"url":876,"version":877,"accessedDate":19},"BCM2711 ARM Peripherals (Raspberry Pi 4B & Compute Module 4)","datasheet","https:\u002F\u002Fdatasheets.raspberrypi.com\u002Fbcm2711\u002Fbcm2711-peripherals.pdf","v2.0",{"id":16,"publisher":11,"title":879,"documentType":880,"url":881,"version":882,"accessedDate":19},"Raspberry Pi HAT+ \u002F HAT Design Guide & EEPROM Specification","user_guide","https:\u002F\u002Fdatasheets.raspberrypi.com\u002Fhat\u002Fhat-plus-specification.pdf","v1.0",[884,887,890,893],{"slug":885,"name":886},"raspberry-pi-pico","Raspberry Pi Pico",{"slug":888,"name":889},"arduino-mega-2560","Arduino Mega 2560 Rev3",{"slug":891,"name":892},"arduino-pro-mini","Arduino Pro Mini",{"slug":894,"name":895},"nodemcu-v2-cp2102","NodeMCU v2 Amica (ESP8266)",[],[],{"title":899,"description":900,"card":901,"intro":902,"safe":903,"adc":904,"interfaces":905,"strapping":906,"input":907,"overview":908},"Barra de Expansão GPIO Universal de 40 Pinos do Raspberry Pi (5, 4, 3, Zero)","Diagrama de pinagem interativo completo e especificações elétricas da barra de expansão GPIO padronizada de 40 pinos do Raspberry Pi (Pi 5, 4B, 3B+, 3, 2, Zero 2W). Numeração BCM vs física, I2C, SPI, UART, PWM, I2S\u002FPCM e limites estritos de lógica 3,3 V.","Barra de expansão padronizada de 40 pinos dos computadores de placa única Raspberry Pi (5, 4, 3, Zero) com mapeamento BCM GPIO, I2C, SPI, UART e PCM.","Esta página documenta a barra de expansão GPIO padronizada de 40 pinos (barra J8) compartilhada por todos os computadores de placa única Raspberry Pi modernos — incluindo Raspberry Pi 5, 4B, 3B+, 3, 2, 1B+, Zero e Zero 2 W. Ela serve como padrão de hardware unificado para sensores, módulos de expansão e acessórios HAT oficiais, expondo 28 linhas de E\u002FS digital de uso geral (BCM GPIO), trilhas de alimentação de 3,3 V e 5V, dois I2C, SPI, UART, PWM por hardware e canais de áudio I2S\u002FPCM.","Atenção: os processadores Broadcom das placas Raspberry Pi operam estritamente com lógica de 3,3 V e NÃO toleram 5V! Aplicar 5V a qualquer pino GPIO destruirá permanentemente o SoC. A corrente máxima por GPIO é de 16 mA, e o consumo total de todos os pinos de 3,3 V não deve exceder 50 mA.","As placas Raspberry Pi não têm conversores analógico-digitais (ADC) nativos na barra GPIO de 40 pinos. Para ler sensores analógicos, use conversores ADC externos conectados via I2C ou SPI (por exemplo, ADS1115 ou MCP3008).","Interfaces principais: I2C1 no pino 3 (SDA) e no pino 5 (SCL) com pull-ups integrados de 1,8 kΩ; SPI0 nos pinos 19 (MOSI), 21 (MISO), 23 (SCLK), 24 (CE0), 26 (CE1); UART0 principal nos pinos 8 (TXD) e 10 (RXD); PWM por hardware nos GPIO 12, 13, 18, 19; áudio I2S\u002FPCM nos GPIO 18 (CLK), 19 (FS), 20 (DIN), 21 (DOUT).","Os pinos 27 (ID_SD) e 28 (ID_SC) são dedicados à EEPROM de identificação do HAT no I2C0. Eles são reservados pela especificação oficial de HAT para a identificação automática de hardware no boot e nunca devem ser usados como GPIO de uso geral ou para sensores do usuário.","Todas as 28 linhas BCM GPIO suportam resistores de pull-up e pull-down internos configuráveis por software, interrupções por borda e configuração da capacidade de acionamento de 2 a 16 mA por pino.",{"summary":909,"power":910,"notes":914,"useCases":918,"before":922},"Barra de expansão padronizada de 40 pinos (J8) com passo de 2,54mm, comum aos modelos Raspberry Pi (5, 4B, 3B+, 3, Zero). Fornece acesso direto a 28 linhas BCM GPIO, barramentos I2C, SPI, UART, PWM, I2S e trilhas de alimentação de 3,3 V\u002F5V.",{"usbc":911,"pins":912,"poe":913},"Entrada de alimentação USB Type-C (5V DC, recomendado 5V\u002F3A para o Pi 4 ou 5V\u002F5A PD para o Pi 5)","Pinos 2 e 4 (5V) e pinos 1 e 17 (3,3 V) na barra para alimentar periféricos ou fornecer alimentação à placa","Power over Ethernet (HAT PoE \u002F PoE+) via barra dedicada de 4 pinos próxima ao conector Ethernet",{"logic":915,"hat_id":916,"bcm_vs_phys":917},"Lógica estrita de 3,3 V: os GPIO NÃO toleram 5V. Use sempre conversores de nível lógico bidirecionais ao conectar componentes de 5V.","Os pinos ID_SD (27) e ID_SC (28) são reservados para a detecção da EEPROM de identificação do HAT no boot — não conecte periféricos comuns aqui.","Preste muita atenção aos números de pino físico (1-40) versus os números BCM GPIO (GPIO 0-27) nas configurações das bibliotecas Python e C.",{"hats":919,"automation":920,"iot":921},"Empilhamento de acessórios HAT oficiais e de terceiros (DACs de áudio, displays, controladores de motor, shields de sensores).","Controle de automação industrial e residencial, robótica, chaveamento de relés e controle de motores de passo.","Construção de gateways IoT e estações de monitoramento ambiental usando sensores digitais I2C, SPI e 1-Wire.",{"no_5v":923,"adjacent_5v":924,"hat_eeprom":925},"Nunca aplique mais de 3,3 V a qualquer pino GPIO. Exceder 3,3 V queimará permanentemente o processador Broadcom.","Tenha extremo cuidado ao medir os pinos 2 e 4 (5V); um curto acidental com o pino 1 (3,3 V) ou o pino 3 (GPIO 2) destruirá permanentemente a placa.","Não leve os pinos 27 e 28 a nível alto ou baixo durante o boot, a menos que esteja se comunicando com uma EEPROM de HAT oficial.",1791754288628]