@felmue Many thanks Felmue previously I'm use other F/W after use 1.9.8 it back to function.

@felmue Thanks for your reply. I found the table below on the official M5Stack (https://docs.m5stack.com/#/en/unit/pbhub?id=pinmap) and started from there. That's why I thought all ports had the same functionality .... [image: 1617097248770-4ac4b932-044b-4d40-ac0b-9f82a9bf5dee-afbeelding-resized.png]