Quantity   Component name
1 × HP5508A measurement display
1 × HP10780 reciever
2 × HP10703A retroreflector
1 × HP10706A plane mirror interferometer
1 × HP5517B laser
1 × homemade cable to connect laser, display and reciever
1 × Zipit Z2 embedded computer
1 × breakout board for docking connector on Z2
1 × simple camera slider kit (inventables.com)