Adafruit mini push pull solenoid 5v 1 1a adafruit 2776 p the adafruit mini push pull solenoid turns digital ones and zeroes into linear mechanical motion for those times when the rotary motion of a motor or servo isn t appropriate it has a 3mm travel which means that when power is applied the central metal shaft pops forward by 3mm enough to actuate a switch push a lever or similar small action p p when 5v is applied it actuates and when the power is removed a return spring pulls the