The Raspberry Pi 3 Model B is a single-board computer developed by the Raspberry Pi Foundation. This board consists of a 1.2Ghz 64-bit quad-core ARM processor and an 802.11n Wireless LAN, công nghệ bluetooth không dây 4.1, & Bluetooth Low Energy. Lượt thích the previous version (the Pi 2) it consists of 1 GB of RAM, 4 USB ports, and full HDMI support. Raspberry pi 3 GPIO Pinout or sạc pin diagram, và specifications are explained in detail in this post.

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Specifications of Raspberry PI 3 board:

Quad-Core 1.2GHz Broadcom BCM2837 64bit CPU1GB RAMBCM43438 wireless LAN & Bluetooth Low Energy (BLE) on board100 Base Ethernet40-pin extended GPIO4 USB 2 ports4 Pole 3.3mm stereo output và composite đoạn clip portFull-size HDMI CSI (Camera Serial Interface) camera port for connecting a cameraDSI (Display Serial Interface) display port for connecting a touchscreen displayMicro SD portMicro USB power port (up lớn 2.5A)Size – 85 x 56 x 17 mm

Raspberry Pi 3 GPIO Pinout / sạc pin diagram:

The Processor used in Raspberry Pi 3:

Broadcom BCM2837: It is a 1.2GHz 64bit ARM quad-core Cortex A53 processor, with 512 KiB shared L2 cache, dual-core VideoCore IV GPU
400 MHz supporting OpenGL ES 2.0, hardware-accelerated OpenVG, & 1080p30 H.264 high-profile decode.


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Raspberry Pi 3 model B GPIO Pinout

**Download HD R-Pi 3 mã sản phẩm B Pinout image from here. 

A powerful feature of the Raspberry Pi is the row of GPIO (general-purpose input/output) pins along the extreme right edge of the board. Like every Raspberry Pi chipset, it consists of a 40-pin GPIO. A standard interface for connecting a single-board computer or microprocessor lớn other devices is through General-Purpose Input/Output (GPIO) pins. GPIO pins vì not have a specific function & can be customized using the software.


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Raspberry Pi 3B+ GPIO Pinout


Raspberry Pi 3 power nguồn Pins:

The board consists of two 5V pins, two 3V3 pins, & 9 ground pins (0V), which are unconfigurable.

5V: The 5v pins directly deliver the 5v supply coming from the mains adaptor. This sạc can use lớn power up the Raspberry Pi, và it can also use lớn power up other 5v devices.

3.3V: The 3v sạc pin is there to lớn offer a stable 3.3v supply lớn power components và to test LEDs.

GND: Ground is commonly referred khổng lồ as GND. All the voltages are measured with respect to the GND voltage.

Raspberry Pi 3 Input/Outputs pins:

A GPIO pin that is phối as an input will allow a signal khổng lồ be received by the Raspberry Pi that is sent by a device connected to this pin. A voltage between 1.8V & 3.3V will be read by the Raspberry Pi as HIGH & if the voltage is lower than 1.8V will be read as LOW. 

Note: vì chưng not connect a device with an input voltage above 3.3V to any of the GPIO pins, or else it will fry the Raspberry Pi.

A GPIO pin set as an output pin sends the voltage signal as high (3.3V) or low (0V). When this pin is set lớn HIGH, the voltage at the đầu ra is 3.3V và when set to LOW, the output đầu ra voltage is 0V.

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Along with the simple function of input and output pins, the GPIO pins can also perform a variety of alternative functions. Some specific pins are:

PWM (pulse-width modulation) pins: 

Software PWM is available on all pinsHardware PWM is available on these pins only: GPIO12, GPIO13, GPIO18, GPIO19

SPI pins: 

SPI (Serial Peripheral Interface) is another protocol used for master-slave communication. It is used by the Raspberry pi board khổng lồ quickly communicate between one or more peripheral devices. Data is synchronized using a clock (SCLK at GPIO11) from the master (RPi) & the data is sent from the Pi to our SPI device using the MOSI (Master Out Slave In) pin. If the SPI device needs to communicate back khổng lồ Raspberry Pi, then it will send data back using the MISO (Master In Slave Out) pin. There are 5 pins involved in SPI communication:

GND: Connect all GND pins from all the slave components and the Raspberry Pi 3 board together.SCLK: Clock of the SPI. Connect all SCLK pins together.MOSI: It stands for Master Out Slave In. This sạc is used to lớn send data from the master to lớn a slave.MISO: It stands for Master In Slave Out. This pin sạc is used to receive data from a slave khổng lồ the master.CE: It stands for chip Enable. We need lớn connect one CE pin per slave (or peripheral devices) in our circuit. By default, we have two CE pins but we can configure more CE pins from the other available GPIO pins.

SPI pins on board:

SPI0: GPIO9 (MISO), GPIO10 (MOSI), GPIO11 (SCLK), GPIO8 (CE0), GPIO7 (CE1)SPI1: GPIO19 (MISO), GPIO20 (MOSI), GPIO21 (SCLK), GPIO18 (CE0), GPIO17 (CE1), GPIO16 (CE2)

I2C pins:

I2C is used by the Raspberry Pi board lớn communicate with devices that are compatible with Inter-Integrated Circuit (a low-speed two-wire serial communication protocol). This communication standard requires master-slave roles between both devices. I2C has two connections: SDA (Serial Data)SCL (Serial Clock). They work by sending data to and using the SDA connection, & the tốc độ of data transfer is controlled via the SCL pin.

Data: (GPIO2), Clock (GPIO3)EEPROM Data: (GPIO0), EEPROM Clock (GPIO1)

UART Pins:

Serial communication or the UART (Universal Asynchronous Receiver / Transmitter) pins provide a way to lớn communicate between two microcontrollers or the computers. TX pin is used lớn transmit the serial data và RX sạc pin is used khổng lồ receive serial data coming from a different serial device.

TX (GPIO14)RX (GPIO15)

Raspberry Pi 3 mã sản phẩm B Schematic(official):

To download the Raspberry Pi 3 model B Schematic, click here.


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R-Pi 3 mã sản phẩm B Schematic

How khổng lồ program the Raspberry PI 3 model B:

You can control the GPIO of Raspberry Pi 3 using many programming languages. Some of the popular languages along with learning material is given below:

Prefer Book? Read this article on Best Raspberry Pi Books for beginners

Where khổng lồ Buy?

You can get the original Raspberry Pi 3 B board from different stores. But if you want to get it from Amazon, we recommend you the following sellers: