Four digit, 7-segment led display for Arduino based on the TM1637 driver – thesolaruniverse
How to Set up Seven Segment Displays on the Arduino - Circuit Basics
Seven segment clock I made using an arduino nano, ds1307 RTC, and four sn74hc595's : r/electronics
Dr. Monk's DIY Electronics Blog: Review: 4-digit 7-segment LED and RTC from Adafruit
Seven Segment Digital Clock using Arduino by Manmohan Pal - YouTube
DAOKI 5PCS LED Display Module TM1637 7 Segment 4 Bits Common Anode Clock Red Digital Tube for Arduino with Dupont Cable Male to Female 8 PIN : Amazon.ca: Industrial & Scientific