Maybe you need more access to GPIO pins on a Raspberry Pi, maybe you’re even building a robot, or some such home automation project, or maybe you’re just interested in the latest release from the Raspberry Pi Foundation the thing to note is the new Raspberry Pi Compute Module 3! Basically, you get the guts of the latest Raspberry Pi, as well as 4Gbyte of eMMC Flash, integrated on to a smaller board, which fits into a standard DDR2 SODIMM connector. And many more GPIOs and interfaces are available as compared to the Raspberry Pi itself.