조회 수 7493 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
401 JAVA [Java] 자바에서 콜백(Callback) 구현하기 2017.03.15 25889 0
400 Android json 데이터 다루기 - GSon 사용법 2017.03.15 8434 0
399 Python json 데이터 핸들링 2017.03.09 8627 0
398 Pi 라즈베리파이 gpio utility 2017.02.15 6213 0
397 C++ STL queue 사용법 2017.02.14 28479 0
396 C++ C++ string 정리 (C++ 문자열) 2017.02.14 13061 0
395 Pi 라즈베리파이 3, Spec & PIN Map file 2017.02.06 30531 0
394 일반 Anet A8 Prusa i3: tips and tricks 2017.02.04 22591 0
393 MFC [Collection] ArrayList 예제 2017.01.25 6521 0
392 MFC [Collection] CArray Class 사용법 2017.01.25 15825 0
391 업무 ABS / PLA 2017.01.18 5937 0
390 Pi NodeMCU PIN 정보 file 2017.01.09 8930 0
389 Pi SD Memory 카드 SPI 3.3V/5.0V 인터페이스 모듈 Atmega2560 제어 예제 2016.12.27 6798 0
388 Pi ATTINY85 PIN정보, Data sheet 2 file 2016.12.10 8983 0
387 Pi 키르히호프의 법칙 2016.12.05 10370 0
목록
Board Pagination ‹ Prev 1 ... 3 4 5 6 7 8 9 10 11 12 ... 34 Next ›
/ 34

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