7 Segment Serial

Parts

Arduino microcontroller and carrier board

LiPo battery

7-Segment Serial Display (User Manual , Schematic) Prepare the breadboard

Ground (black wire) to the pad marked "GND"

5v- supplied from Arduino (red wire) to the pad marked "Vcc".

Serial data- from pin D3 (green wire) to the pad marked "Rx"

Program the Microcontroller

/**

 * @file: 4 character 7 segment LED displays example

 * @date: 4/11/2011

 * @DESCRIPTION

 * modified from: http://www.arunet.co.uk/tkboyd/ec/ec1led4x7ser.htm

 * Very, very simple "test" program for Sparkfun

 * 4 character 7 segment LED displays, serially driven

 * using just the "Rx" input on the module.

 * See Sparkfun.com... product codes COM-09764 - COM-09767

**/

#include <NewSoftSerial.h>

#define SerInToArdu 2    //  for the serial data into the Arduino

#define SerOutFrmArdu 3  // The pin that serial data

NewSoftSerial mySerialPort(SerInToArdu,SerOutFrmArdu);

// creates the serial channel we will use.

//--- Function: Setup ()

void setup()

  pinMode(SerOutFrmArdu,OUTPUT);

  pinMode(SerInToArdu,INPUT);   //explicit about data direction over serial lines

  mySerialPort.begin(9600);

  mySerialPort.print("v"); //  To reset display module

//--- Function: loop ()

void loop()

  mySerialPort.print("1234");

  delay(600);

  mySerialPort.print("2340");

  delay(600);

  mySerialPort.print("3400");

  delay(600);

  mySerialPort.print("4000");

  delay(600);

  mySerialPort.print("0000");

  delay(600);

  mySerialPort.print("----");

  delay(600);

  mySerialPort.print("8888");

  delay(600);

  mySerialPort.print("HEL0");

  delay(1800);

  mySerialPort.print("xxxx");  //Send an "x" to turn a digit off

  delay(1200);