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標題: Arduino三片74HC595控制雙色8x8LED點陣程序 [打印本頁]

作者: 探索軟件 時間: 2018-12-16 21:19
標題: Arduino三片74HC595控制雙色8x8LED點陣程序
三片 595 聯級控制雙色點陣(共陰)顯示

問題:綠色總是少顯示一列.  有高手看看代碼指出問題. (有誰做過三片595 控制雙色點陣,歡迎交流)

代碼:
#include <TimerOne.h>
int latchpin = 8;
int clockpin = 12;
int datapin = 11;
int i;
int j;
int k;
void setup()
{
  pinMode (latchpin,OUTPUT);
  pinMode (clockpin,OUTPUT);
  pinMode (datapin,OUTPUT);
}
void loop(){
//綠色全亮
  digitalWrite(latchpin,LOW);
  shiftit1(B00000000);
  shiftit0(B11111111);
  digitalWrite(latchpin,HIGH);
  delay(1000);
//紅色全亮
digitalWrite(latchpin,LOW);
shiftit2(B00000000);
shiftit0(B11111111);
digitalWrite(latchpin,HIGH);
delay(1000);
}
//陰極 595
void shiftit0(byte dataout){
  int i=0;
  boolean pinstate;
  digitalWrite (datapin,LOW);
  digitalWrite(clockpin,LOW);
  for (i = 0;i < 8;i ++){
digitalWrite(clockpin,LOW);
if(dataout &(1 << i)){pinstate = HIGH;}else{pinstate = LOW;}
digitalWrite(datapin,pinstate);
digitalWrite(clockpin,HIGH);
digitalWrite(datapin,LOW);
  }
  digitalWrite(clockpin,LOW);

}
//綠色 595
void shiftit1(byte dataout){
  int j=0;
  boolean pinstate;
  digitalWrite (datapin,LOW);
  digitalWrite(clockpin,LOW);
  for (j = 8;j < 16;j ++){
digitalWrite(clockpin,LOW);
if(dataout &(1 << j)){pinstate = HIGH;}else{pinstate = LOW;}
digitalWrite(datapin,pinstate);
digitalWrite(clockpin,HIGH);
digitalWrite(datapin,LOW);
  }
  digitalWrite(clockpin,LOW);
}
//紅色 595
void shiftit2(byte dataout){
  k=0;
  boolean pinstate;
  digitalWrite (datapin,LOW);
  digitalWrite(clockpin,LOW);
  for (k = 16;k < 32;k ++){
digitalWrite(clockpin,LOW);
if(dataout &(1 << k)){pinstate = HIGH;}else{pinstate = LOW;}
digitalWrite(datapin,pinstate);
digitalWrite(clockpin,HIGH);
digitalWrite(datapin,LOW);
}
  digitalWrite(clockpin,LOW);
}

作者: admin 時間: 2018-12-16 21:37
電路原理圖如下：

作者: 探索軟件 時間: 2018-12-16 22:17
參考的電路圖

電路圖.png (69.5 KB, 下載次數: 80)

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