Arduino > Feather
Adafruit 0.56″ 4-Digit 7-Segment Display w/ FeatherWing – White Adafruit
Raspberry Pi > LCD
Adafruit Blue&White 16×2 LCD+Keypad Kit for Raspberry Pi Adafruit
Prototyping > Wires
Adafruit Small Alligator Clip Test Lead (set of 12) Adafruit
LCDs & Displays
Assembled Standard LCD 16×2 + extras – White on Blue Adafruit
Raspberry Pi > Cases
Cyntech Raspberry Pi Case for Pi 3, Pi 2 and Model B+ in White Cyntech
Raspberry Pi > Cases
EL Wire/Tape/Panel
LCDs & Displays
Arduino > Display
LCD Shield Kit w/ 16×2 Character Display – Only 2 pins used! – BLUE AND WHITE Adafruit
Raspberry Pi > Accessories
Official Raspberry Pi Mouse in Black or Red Raspberry Pi Foundation
Power Supplies & Cables
Official Raspberry Pi Power Supply in White or Black Raspberry Pi
Raspberry Pi > Cases
Pi Foundation Raspberry Pi 3 A+ Case Raspberry Pi Foundation
Pico Add-ons
Raspberry Pi > Accessories
Prototyping > Wiring
Power > Converters
Raspberry Pi
Raspberry Pi micro-HDMI to standard HDMI Cable, 1 to 2 meter, White or Black Raspberry Pi
Raspberry Pi > Accessories
Raspberry Pi > Cases
Spacer for Raspberry Pi 2 and Model B+ Cyntech Case – Multiple Colors Cyntech