5Pcs RobotDyn Yellow LED Display Tube 4-Digit 7-segments Module For Arduino DIY
This is a basic, 4-digit 7-segment display module
The display features double points in midle.
The decimal point per digit not active.
Module connecting to digital I/O on 2 pins.
For Arduino use library: TM1637.h
Color: Yellow
Package includes:
5 x Yellow LED Display Tube Module



Example1
/*
Clock example example (Extended class example)
Display a clock on the display. For this demo you can add a speed multiplier to make the clock run faster. For a real clock you want to use a delay of 1 min or even use a Real Time Clock module (RTC)
The circuit:
* connect TM1637 pin CLK to Arduino pin D4
* connect TM1637 pin DIO to Arduino pin D5
* connect TM1637 pin Vcc to Arduino pin 5V
* connect TM1637 pin GND to Arduino pin GND
*/
// include the SevenSegmentTM1637 library
#include "SevenSegmentTM1637.h"
#include "SevenSegmentExtended.h"
/*
initialize global TM1637 Display object
* The constructor takes two arguments, the number of the clock pin and the digital output pin:
* SevenSegmentTM1637(byte pinCLK, byte pinDIO);
*/