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MUSE Pi / MUSE Pi Pro Expansion IO Definitions

Both MUSE Pi and MUSE Pi Pro mainboards provide external IO interfaces to facilitate the connection of peripherals such as GPIO, I2C, and SPI devices.

Starting from Bianbu Star version 2.1.5, the expansion IOs are pre-configured with default functionality. This eliminates the need for users to manually modify the Device Tree Source (DTS) files for common use cases.

MUSE Pi Pro​

The 40-pin expansion IO header on the MUSE Pi Pro is defined as follows:
MUSE Pi Pro

MUSE Pi​

The 26-pin expansion IO header on the MUSE Pi is defined as follows:
MUSE Pi