Quantity   Component name
1 × Dome push buttons https://www.aliexpress.com/item/2PCS-Big-Dome-Pushbutton-100mm-Push-Button-Arcade-Button-Led-Micro-Switch-Momentary-Illuminated-12v-Power/32797734572.html?spm=a2g0s.9042311.0.0.hRzyD7
1 × raspberry pi 3
1 × ProtoSheild https://www.aliexpress.com/item/Raspberry-Pi-Prototype-Expantion-Edition-Prototyping-Pi-Plate/1797343014.html?spm=a2g0s.9042311.0.0.kCzzSo
1 × PI camera https://www.aliexpress.com/item/Brand-New-1Pcs-Camera-Module-Board-REV-1-3-5MP-Webcam-Video-1080p-720p-Fast-For/32660586339.html?spm=a2g0s.9042311.0.0.JGbHoZ