Amazon.com: uxcell Common Cathode 10 Pin 1 Bit 7 Segment Display 1.1 x 0.79 x 0.35 Inch 0.55" Red LED Display Digital Tube 10pcs : Industrial & Scientific
I made a 7-segment display module that allows you to add any size display to your project with just 2 GPIO! : r/arduino
How to use LED seven segment display and calculate its resistors value - YouTube
How to Set up Seven Segment Displays on the Arduino - Circuit Basics
Adafruit 0.56 4-Digit 7-Segment Display w/ FeatherWing - White : ID 3109 : $10.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Digital Lab - 7-segment LED Display | Digital IC Projects | Electronics Textbook