Specification:

1. This module is a 12 foot with clock display four common anode tube (0.56 inch) and basic 4-digit 7-segment display module.
2. Driver IC is TM1637, only two signal lines can make the MCU control 4bit 8 digital tube.

Control Interface:

• GND--ground
• VCC--power supply
• DIO--data input and output
• CLK--clock signal feet

Please Note: The pins are not soldered to the board, you need to solder by yourself. Wish you could understand.

• For use library: TM1637.h.
• Digital tube 8 grey level is adjustable.
• Module connects to digital I/O on 2 pins.
• The control interface electrical level is 5V.

Package Included:
5x TM1637 7-Segment 4-Digit 0.56" LED Display Colon Module Clock Digital Tube Serial Driver Board (5 colors)