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Two solenoids, running on 24volt push the up and down buttons. because the solenoids came without a spring, a homebrew spring is provided in the form of bended tyraps. the silver gaffer tape provides some rudimentary protection against rain (not available for testing) The solenoids are held on spot with some Lubic profiles. All wiring was done with flexible cat-5 cable, soldered to DIN-6 or DB9 connectors.

The three arduino's were housed in old scsi drive casings. they provided 5volt and 12volt to drive the Arduino, solenoids, lights, bel and servo.