Raspberry Pi 3 B Io Pins
24x gpio pins.
Raspberry pi 3 b io pins. Any of the gpio pins can be designated in software as an input or output pin and used for a wide range of purposes. We have included all three iterations of the pi for the pinout diagram. 1x serial uarts rpi3 only includes mini uart 2x spi bus. It is basically two mcp23017 on one board.
Raspberry pi 3 is a development board in pi series. A 40 pin gpio header is found on all current raspberry pi boards unpopulated on pi zero and pi zero w. Although it is cheaper to use two mcp23017s as opposed to an io pi. Gpio 2 and gpio 3 the raspberry pi s i2c1 pins allow for two wire communication with a variety of external sensors and devices.
Prior to the pi 1 model b 2014 boards comprised a shorter 26 pin header. All io pins are 3 3v not 1 8v. If you re an owner of a raspberry pi b 2 zero or 3 then you will have 40 pins in total. 2x 5v power pins.
1x i2c bus. The io pi allows for 32 digital i os and you can control it with the raspberry pi s i2c port. It can be considered as a single board computer that works on linux operating system. 5 minutes to read.
See below for the raspberry pi gpio pinout diagram. They are not suitable for use as general purpose io where a pull up might interfere. Raspberry pi 2 3 pin mappings. The gnd 5v 3v3 uart i2c and spi bus pins are in the same places.
The pwm specific pin is no longer marked as pwm and now 7 pins are marked as gpio gen0 to gpio gen6. The raspberry pi 3b board contains a single 40 pin expansion header labeled as j8 providing access to 28 gpio pins. The same gpio pins are used for the raspberry pi 3 e g. Pins 1 2 39 40 are also labeled below j8 pinout 40 pin header.
Pins are not 5v tolerant. The earlier models such as the raspberry pi b have just 26 pins. The i2c pins include a fixed 1 8 kω pull up resistor to 3 3v. Pinout also includes dozens of pinouts for raspberry pi add on boards hats and phats.
The raspberry pi gpio pinout guide. This gpio pinout is an interactive reference to the raspberry pi gpio pins and a guide to the raspberry pi s gpio interfaces. I2c is a multi drop bus. 2x 3 3v.
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. Hardware interfaces for the raspberry pi 2 and raspberry pi 3 are exposed through the 40 pin header j8 on the board. Full details are available.