argon audio One M.2 Manual 

Text of the manual

You need to PRESS button to

Power ON from shutdown or power outage. Pin 2-3 Always ON (Mode 2) Power current will flow directly to Raspberry Pi. NO need to PRESS button to power ON from power outage

ARGON ONE M.2 INSTRUCTION MANUAL

ARGON ONE Pi 4 STATE ACTION FUNCTION OFF Short Press Turn ON ON Long Press (>= 3 s) Soft Shutdown and Power Cut ON Short press (<3 s) Nothing ON Double tap Reboot ON Long Press (>= 5 s) Forced Shutdown

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