4 Bits Digital Tube LED Display Module with Clock Display TM1637 for Arduino DIY

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: Adjustable digital tube 8 gray Display of male red for the four digital tubeLevel control interface for 5V or 3.3V 4 M2 screws positioning holes for easy installation 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; 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