10Pcs RobotDyn® Yellow LED Display Module 4-digit 7-segment Tube For Arduino DIY

Feature: 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: 10 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); */ const byte PIN_CLK = 4; // define CLK pin (any digital pin) const byte PIN_DIO = 5; // define DIO pin (any digital pin) SevenSegmentExtended display(PIN_CLK, PIN_DIO); const unsigned int clockSpeed = 10000; // speed up clock for demo // run setup code void setup() { Serial.begin(9600); // initializes the Serial connection @ 9600 baud display.begin(); // initializes the display display.setBacklight(100); // set the brightness to 100 % delay(1000); // wait 1000 ms }; // run loop (forever) void loop() { byte hours = 14; // initialize hours byte minutes = 39; // initialize minutes for ( ; hours