Raspberry Pi 3 B Pin Diagram
These are the small numbers next to the header e g.
Raspberry pi 3 b pin diagram. Newer computers and game consoles have replaced the old machines where most of us learned to program. Prior to the pi 1 model b 2014 boards comprised a shorter 26 pin header. Rev 1 pi alternate gpio bcm numbers for the original 26 pin model a and b pi. Raspberry pi 2 3 pin mappings.
The raspberry pi 3b board contains a single 40 pin expansion header labeled as j8 providing access to 28 gpio pins. Wiring pi pin 9. Hardware interfaces for the raspberry pi 2 and raspberry pi 3 are exposed through the 40 pin header j8 on the board. 2x 3 3v.
Wiringpi for gordon henderson s wiring pi library. The genesis of the raspberry pi came from a few college students concerned about the dwindling number and skills of students applying to study computer science. Pi hardware raspberry pi 1 model b model b io pins note that we are not currently sure if the new pin 27 40 pwm1 gpclk1 and gpclk2 peripheral pin functions will be made accessible under raspbian and if so which pins they will be assigned to hence the duplicated pins shown with these functions. 2x 5v power pins.
These are shown as a tooltip when you mouseover a pin. Here is the raspberry pi 4 default gpio pinout for the 40 pin j8 header. Click the image for an enlarged version. 24x gpio pins.
5 minutes to read. Gpio bcm pin 1 on rev 1 very early pi. 1x serial uarts rpi3 only includes mini uart 2x spi bus. Raspberry pi 3 model b gpio 40 pin block poe header pinout.
Physical or board correspond to the pin s physical location on the header. It can be considered as a single board computer that works on linux operating system. Any of the gpio pins can be designated in software as an input or output pin and used for a wide range of purposes. Raspberry pi 3 is a development board in pi series.
1x i2c bus. The board not only has tons of features it also has terrific processing speed making it suitable for advanced applications. A 40 pin gpio header is found on all current raspberry pi boards unpopulated on pi zero and pi zero w. Scl i2c1 clock is one of the i2c pins on the pi learn more about i2c.
Pins 1 2 39 40 are also labeled below j8 pinout 40 pin header.