Quantity   Component name
1 × VR glasses Like google cardboard or gear VR
1 × Smartphone Has to fit in the VR glasses. The better resolution the less "door effect" you'll see.
1 × A bluetooth gamepad I bought this cheap one : http://happyvr.eu/review/review-mini-gamepad-bluetooth/
2 × Raspberry Pi zero One raspberry per eye/camera
2 × SainSmart Mini NOIR Camera Module 5MP That's the ones I had already.