TM1637 4 Bits Digitaal 7-sigments LED Display Module

The module is a 12-foot clock with 4 points of positive digital (0.36 inches) display module driver IC TM1637, only two signal lines can make SCM four 8-segment LED.
 
Module features are as follows:
 
Level control interface for 5V or 3.3V

 4 digital display interface module as shown below:
 
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;