Controller

Device or person managing an electronic system, machine, or process.

control device regulator

A controller is a device used to operate an electronic system, machine, or process. It can also refer to a person who manages or directs something.

/kənˈtrōlər/

From French 'contrôleur', from Old French 'controler' meaning 'to examine, reckon with'.

regulator director manager

device manager

game controller thermostat remote control

system organization

digital management