Module Features:

Display common anode for the four red LED

Digital tube 8 gray adjustable

Level control interface for 5V or 3.3V

4 M2 screws positioning holes for easy installation

Size:42X24X12mm

Interface 4 digital display module: (the last picture show)

Control Interface : A total of four pins (GND, VCC, DIO, CLK), GND to ground , VCC is the power supply , DIO of data input and output pin , CLK is the clock signal pin ;

Digital tube: 4 common anode score points with 0.36 inches LED, red highlights ;

Positioning holes : 4 M2 screws positioning hole diameter is 2.2mm, the positioning of the module is easy to install , to achieve inter- module combination

Package includes:

1pc X TM1637 0.36" 4 Bits Digital Tube LED Display Module With Clock Display for Arduino