Breakouts add handy functions to your microcontroller, be it a Raspberry Pi, Arduino, or something else. They tend to be dedicated to just one or a couple of functions, like audio output, motor driving, or sensors, but can be built up into larger projects.
Our growing range of Pimoroni breakouts cover a range of functions, from sensors that are ideal for robotics projects to sophisticated thermal cameras. We have a huge number of Adafruit breakouts with heaps of functions, from LoRa radio to full-colour OLEDs.