Dip your toes into the world of PIO on Raspberry Pi 5 using PIOLib

The launch of Raspberry Pi 5 represented a significant change from previous models. Building chips that run faster and use less power, while continuing to support 3.3V I/O, presents real, exciting challenges. Our solution was to split the main SoC (System on Chip) in two — the compute half, and the I/O half — and put a fast interconnect (4-lane PCIe Gen 3) between them. The SoC on Raspberry Pi 5 is the Broadcom BCM2712, and the I/O processor (which used to be known in the PC world as the ‘southbridge’) is Raspberry Pi RP1.

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