How to control 4 digit 7 segment display with MAX7219 module - YouTube
10pcs/lot Max7219 Led Module 8-digit 7 Segment Digital Led Display Tube Mcu 100% New Original - Integrated Circuits - AliExpress
MAX7219 0.56" 3 or 4-Digit 7-Segment Display Board - ProtoSupplies
7 segment 4 digit common anode works with MAX7219 - Displays - Arduino Forum
MAX7219 Interface with Multiple 7-Segment Displays - YouTube
Amazon.com: ALMOCN 4Pcs MAX7219 8 Bit Digital Segment LED Display Tube 7-Segment Display Module for Arduino MCU/51/AVR/STM32/Raspberry Pi 4 Model B : Industrial & Scientific
Amazon.com: 5 PCS 8 Digit 7 Segment Module MAX7219 8 Bit Digital Segment Tube LED Display Module Compatible with Arduino MCU/51/AVR/STM32/Raspberry Pi 4 Model B : Industrial & Scientific