from what im aware the pins are 3v3 logic and so you need a 5v>3v3 logic shifter board like this: https://www.amazon.co.uk/Youmile-Channels-Converter-Bi-Directional-Shifter/dp/B08BZ8K7YR/ref=sr_1_2_sspa?crid=1YGIYN9553SC8&keywords=logic+shifter&qid=1678167168&sprefix=logic+shifter%2Caps%2C74&sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1 between the M5Atom and the zircon unit.