Raspberry Pi 3 Model B V1 2 Gpio Pins

External circuitry may draw up to a total of 50ma max current from the 3 3v out pins. These pins are a physical interface between the pi and the outside world. Gpio pinout rasp pi 1 rev1 and rev2.

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Raspberry pi 3 model b took out 26 gpio pins on board.

Raspberry pi 3 model b v1 2 gpio pins. Model b io pins pi hardware raspberry pi 1 model b model b io pins 3 3v output. If you re using the raspberry pi b 2 zero 3 or the latest raspberry pi 4 model b you ll discover that your board have a total of 40 gpio pins. Physical or board correspond to the pin s physical location on the header. These are shown as a tooltip when you mouseover a pin.

Prior to the pi 1 model b 2014 boards comprised a shorter 26 pin header. The hummingboard with its quad core power larger storage space and faster interfaces is a strong competitor for the raspberry pi. This offers and increase of 14 pins over the 26 pin header on the original raspberry pi. Explaining the raspberry pi gpio pinout ref.

These are the small numbers next to the header e g. The raspberry pi 3 model b board contains a single 40 pin expansion header labeled as j8 providing access to 28 gpio pins. Gpio pinout rasp pi 1 model b rasp pi 2 model b. Wiringpi for gordon henderson s wiring pi library.

Raspberry pi can control many external i o devices using these gpio s. Any of the gpio pins can be designated in software as an input or output pin and used for a wide range of purposes. This page aims to provide a set of information that should prove useful to anyone interfacing to these pins in their projects. Rev 1 pi alternate gpio bcm numbers for the original 26 pin model a and b pi.

Graphic showing the gpio pin breakout on the raspberry pi 3 model b. The pwm pin available on the gpio header is shared with the audio system. A 40 pin gpio header is found on all current raspberry pi boards unpopulated on pi zero and pi zero w. We can program these pins according to our needs to interact with external devices.

One of the most significant changes to the raspberry pi model b is the 40 pin header j8. If you re looking for the new raspberry pi 3 model b then you can find that here. The older iterations of the rpi such as the raspberry pi model b will only contain a total of 26pins. Raspberry pi 3 model b gpio 40 pin block poe header pinout.

Raspberry pi gpio layout pi 1 model b revision 1 the pin marked p1 is pin 1 and provides 3 3v 50ma max. Pins 1 2 39 40 are also labeled below j8 pinout 40 pin header. You can work out all the other pins from there.