Note: This page was originally meant to provide support for the Raspberry Pi 3. Support for earlier families has been added since.

The Raspberry Pi 3 is a version of the RaspberryPi which was released in February 2016. It contains a 1.2 GHz ARM Cortex-A53 CPU and hence is the first version of the RaspberryPi to support the arm64 architecture. In 2018, two further models were added to the Raspberry Pi 3 family — The 3B+ and 3A+.

GPIO

You can use sysfs to configure and control the GPIO pins. The pin numbers are offset by 458 (see /sys/kernel/debug/gpio). Thus to enable pin 4 (as root):

# echo "462" > /sys/class/gpio/export

GPIO libraries work, but require some extra effort as of 2019-03-25.

Sound

The buster kernel does not support at least the analog audio output on the Raspberry Pi 3B+ but installing the buster-backports kernel fixes it:

$ cat /proc/asound/cards
 0 [ALSA           ]: bcm2835_alsa - bcm2835 ALSA
                      bcm2835 ALSA
 1 [vc4hdmi        ]: vc4-hdmi - vc4-hdmi
                      vc4-hdmi