Amazon.com: DORHEA 3PCS TM1637 0.56" 4 Bits Digital LED Display Module with Clock Display 0.36 inch Common Anode Red Digital Tube Board with Cable for Arduino Raspberry Pi DIY Kits : Industrial
GitHub - johnlr/raspberrypi-tm1637: TM1637 driver for raspberry pi
4 Digit Seven 7 Segment Display Red Numbers TM1637 Arduino Pi I2C 3.3V 5V | eBay