@Paul-Chidley Onion Omega2 RST pin is an active Low input for hardware reset The datasheet of Omega2’s SoC can be found here: Mediatek MT7688 Datasheet FW RST pin is an active High input for software reset See also in the official Onion Omega2 Documentation Onion Omega2 See also RESET BUTTON in descriptions of various Onion's Docks.