M5Core2_atemswitcher instruction is below https://qiita.com/kitazaki/items/f37764fbb4d1d98c552d for ATEM Mini Pro / Pro ISO M5Core2_ATEM_01.ino for ATEM Mini Extreme / Extreme ISO M5Core2_ATEM_02.ino supports M5Core2 library ver.0.0.6 (updated from ver.0.0.2 to ver.0.0.6) M5Core2_ATEM_03.ino