4 Bits Digital Tube LED Module With Clock Display for Arduino

Product Features
Common anode showing four red LEDs
Digital tube 8 gray adjustable
5V or 3.3V level control interface
4 M2 screw holes for easy installation
Size: 42X24X12mm
Module Features:
Display four red LED common anode
Digital tube 8 gray adjustable power
Flat Control Interface 5V or 3.3V
4 M2 screw holes for easy installation
Size: 42X24X12mm

Interface 4 digital display module: (the last picture shows)
Control Interface: A total of four pins (GND, VCC, DIO, CLK), GND ground, VCC for the power supply, data input and output pins DIO, CLK for the clock signal pin;
Digital tube: 4 ordinary anode score points, 0.36 inch LED, red highlights;
Positioning holes: four M2 screw positioning hole diameter of 2.2mm, the module easy to locate, easy to install, to achieve a combination of modules