Active Vent Mirror

Does your airlock take forever to cycle? Why not add a crapload of vents?! This IC mirrors a master vent's state (On/Off + Direction) to several other vents. When the master vent does something the other vents do the same thing. Airlock Example Wire up the airlock as normal. Place down two IC Housings. Label one interior and one exterior. Wire D0 of the interior IC to the interior master vent. Wire D1-D3 to the mirrored interior vents. Repeat for exterior. To use less vents, say 2, wire the unused D3 to the gas sensor or delete it out of the code. Pin Out Master D0 The vent that other vents will copy Mirror1 D1 A vent that copies the master Mirror2 D2 A vent that copies the master Mirror3 D3 A vent that copies the master Comments appreciated. Thanks!