조회 수 3353 댓글 0
?

단축키

Prev이전 문서

Next다음 문서

+ - Up Down Comment Print
?

단축키

Prev이전 문서

Next다음 문서

+ - Up Down Comment Print
  • BUZZER : D3
  • VR(가변저항) : A0 (10~2M옴, Bochen 3296)
  • FND(Flexible Numeric Display) : D4(LATCH), D7(CLOCK), D8(DATA) (74HC595 2EA 연결)
    ※ 74HC595 - 시프트 레지스터
  • BUTTON : A1, A2, A3
  • LED : D1, D2, D3, D4

소스출처 : Hobby Component Forum

/* FILE:    ARD_Multifunction_Shield_Seven_Segment_Example
   DATE:    28/05/14
   VERSION: 0.1
   
REVISIONS:

28/05/14 Created version 0.1

This is an example of how to use the 4 digit seven segment display on the Hobby 
Components Arduino compatible Multi Function experimenter shield (HCARDU0085).

This example sketch will display a decimal number on the seven segment LED display 
which will increment by one wever 100ms.

You may copy, alter and reuse this code in any way you like, but please leave
reference to HobbyComponents.com in your comments if you redistribute this code.
This software may not be used for the purpose of promoting or selling products 
that directly compete with Hobby Components Ltd's own range of products.

THIS SOFTWARE IS PROVIDED "AS IS". HOBBY COMPONENTS MAKES NO WARRANTIES, WHETHER
EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ACCURACY OR LACK OF NEGLIGENCE.
HOBBY COMPONENTS SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR ANY DAMAGES,
INCLUDING, BUT NOT LIMITED TO, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY
REASON WHATSOEVER.
*/


/* Define shift register pins used for seven segment display */
#define LATCH_DIO 4
#define CLK_DIO 7
#define DATA_DIO 8
 
/* Segment byte maps for numbers 0 to 9 */
const byte SEGMENT_MAP[] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0X80,0X90};
/* Byte maps to select digit 1 to 4 */
const byte SEGMENT_SELECT[] = {0xF1,0xF2,0xF4,0xF8};


unsigned long Cur_ms_Count; // Stores the current time in ms
unsigned long Last_ms_Count; // Stores the last time in ms the counter was last updated
int Count; // Stores the value that will be displayed

void setup ()
{
  /* Set DIO pins to outputs */
  pinMode(LATCH_DIO,OUTPUT);
  pinMode(CLK_DIO,OUTPUT);
  pinMode(DATA_DIO,OUTPUT); 
  
  /* Initiliase the registers used to store the crrent time and count */
  Cur_ms_Count = millis();
  Last_ms_Count = 0;
  Count = 0;
}

/* Main program */
void loop()
{
 
  /* Get how much time has passed in milliseconds */
  Cur_ms_Count = millis();
  
  /* If 100ms has passed then add one to the counter */
  if(Cur_ms_Count - Last_ms_Count > 100)
  {

    Last_ms_Count = Cur_ms_Count;
    
    if(Count < 9999)
    {
      Count++;
    } else
    {
      Count = 0;
    }
  }
  
  /* Update the display with the current counter value */
  WriteNumber(Count);
}


/* Write a decimal number between 0 and 9999 to the display */
void WriteNumber(int Number)
{
  WriteNumberToSegment(0 , Number / 1000);
  WriteNumberToSegment(1 , (Number / 100) % 10);
  WriteNumberToSegment(2 , (Number / 10) % 10);
  WriteNumberToSegment(3 , Number % 10);
}

/* Wite a ecimal number between 0 and 9 to one of the 4 digits of the display */
void WriteNumberToSegment(byte Segment, byte Value)
{
  digitalWrite(LATCH_DIO,LOW); 
  shiftOut(DATA_DIO, CLK_DIO, MSBFIRST, SEGMENT_MAP[Value]);
  shiftOut(DATA_DIO, CLK_DIO, MSBFIRST, SEGMENT_SELECT[Segment] );
  digitalWrite(LATCH_DIO,HIGH);    
}



Dreamy의 코드 스크랩

내가 모으고 내가 보는

List of Articles
번호 분류 제목 날짜 조회 수 추천 수
481 LINUX UNIX COMMAND (5) : grep, sed, awk 등 2006.02.06 17669 66
480 일반 배치파일(bat 파일) 명령어 사용법 2007.01.23 37768 61
479 LINUX sed 사용법 1 2006.02.16 35171 21
478 LINUX |(파이프), grep 명령어에 대해서 2006.02.06 25729 17
477 LINUX Unix Find 명령 기본 사용법 2006.02.02 42492 16
476 LINUX awk 명령어 사용법 1 2006.02.16 103446 15
475 일반 ┗ bat(배치)파일 문법 2007.08.06 76102 8
474 LINUX [util] tar 사용법 2006.05.01 17001 7
473 Android 간단한 Handler, Runnable 사용법 1 2014.12.30 22594 1
472 일반 온습도, 미세먼지 정보 받아오기 secret 2020.01.10 0 0
471 Pi 아두이노 데이터 저장하기(Arduino EEPROM 사용하기) 2019.12.24 159 0
470 LINUX mutt Gmail 설치, 사용 / Ubuntu 18.04 환경 2019.11.25 224 0
469 LINUX 리눅스 명령행에서 메일 보내기(send mail from linux command line) 2019.11.25 293 0
468 Pi 레귤레이터(3.3V 1A) KA78R33 데이터시트 file 2019.08.20 219 0
467 Pi 회로부품 메모 1 secret 2019.08.09 1 0
목록
Board Pagination ‹ Prev 1 2 3 4 5 6 7 8 9 10 ... 33 Next ›
/ 33

나눔글꼴 설치 안내


이 PC에는 나눔글꼴이 설치되어 있지 않습니다.

이 사이트를 나눔글꼴로 보기 위해서는
나눔글꼴을 설치해야 합니다.

설치 취소

Designed by sketchbooks.co.kr / sketchbook5 board skin

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5

Sketchbook5, 스케치북5