Raspberry Pi B Pins

The raspberry pi 3b board contains a single 40 pin expansion header labeled as j8 providing access to 28 gpio pins.
Raspberry pi b pins. One of the most significant changes to the raspberry pi model b is the 40 pin header j8. This guide has been updated to reflect the. Every pi model since the raspberry pi b has had 40 gpio pins though on the pi zero and zero w you have 40 holes that you can solder pins or wires into. By matt on july 18 2014 model b.
Compared to the model b it has. This page aims to provide a set of information that should prove useful to anyone interfacing to these pins in their projects. The gpio header has grown to 40 pins while retaining the same pinout for the first 26 pins as the model a and b. Lost from the model b rev 2 board.
Raspberry pi gpio layout model b. 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. Raspberry pi b gpio header details and pinout.