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我做一個小項目與6顯示7段(我會打電話A1,A2,A3,A4,A5,A6)和3 cd4543B(我會打電話給Da,Db,Dc) Arduino的巨型2560我也使用3晶體管7段顯示與arduino mega2560
Da爲使用爲A1,A2
DB是使用爲A3,A4
DC是使用爲A5,A6
的電路完成,如果我僅使用4個顯示器,則工作我嘗試了不同的組合(A1,A2,A3,A4或A1,A2,A5,A6或A2,A3,A4,A5或A3,A4,A5,A6),一切正常。
,但如果我想用五六顯示,沒有工作....
我不明白爲什麼它不工作,我用比4顯示了同樣的方法。
arduino mega2560有特異性嗎?
我的代碼爲5顯示:
//Da
const int bit_A=8;
const int bit_B=9;
const int bit_C=10;
const int bit_D=11;
//Db
const int bit_E=22;
const int bit_F=24;
const int bit_G=26;
const int bit_H=28;
//Dc
const int bit_I=40;
const int bit_J=42;
const int bit_K=44;
const int bit_L=46;
// transistors
const int alim_dizainemillier= 3;
const int alim_millier=4;
const int alim_centaine=5;
const int alim_dizaine=6;
const int alim_unite=7;
void setup()
{
pinMode(bit_A,OUTPUT);
pinMode(bit_B,OUTPUT);
pinMode(bit_C,OUTPUT);
pinMode(bit_D,OUTPUT);
pinMode(bit_E,OUTPUT);
pinMode(bit_F,OUTPUT);
pinMode(bit_G,OUTPUT);
pinMode(bit_H,OUTPUT);
pinMode(bit_I,OUTPUT);
pinMode(bit_J,OUTPUT);
pinMode(bit_K,OUTPUT);
pinMode(bit_L,OUTPUT);
pinMode(alim_dizainemillier,OUTPUT);
pinMode(alim_millier,OUTPUT);
pinMode(alim_centaine,OUTPUT);
pinMode(alim_dizaine,OUTPUT);
pinMode(alim_unite,OUTPUT);
digitalWrite(bit_A,LOW);
digitalWrite(bit_B,LOW);
digitalWrite(bit_C,LOW);
digitalWrite(bit_D,LOW);
digitalWrite(bit_E,LOW);
digitalWrite(bit_F,LOW);
digitalWrite(bit_G,LOW);
digitalWrite(bit_H,LOW);
digitalWrite(bit_I,LOW);
digitalWrite(bit_J,LOW);
digitalWrite(bit_K,LOW);
digitalWrite(bit_L,LOW);
digitalWrite(alim_dizainemillier,LOW);
digitalWrite(alim_millier,LOW);
digitalWrite(alim_centaine,LOW);
digitalWrite(alim_dizaine,LOW);
digitalWrite(alim_unite,LOW);
}
void loop()
{
for(int i=0;i<10000;i++)
{
afficher_nombre(i);
}
}
void afficher_nombre(int nombre)
{
long temps;
int unite=0,dizaine=0,centaine=0, millier=0, dizainemillier=0;
dizainemillier=nombre/10000;
millier=(nombre-(10000*dizainemillier))/1000;
centaine=(nombre-1000*millier)-(10000+dizainemillier)/100;
dizaine=(nombre-(centaine*100)-(millier*1000)-(dizainemillier*10000))/10;
unite=nombre-(dizainemillier*10000)-(millier*1000)-(centaine*100)-(dizaine*10);
temps=millis();
while((millis()-temps)<500){
digitalWrite(alim_dizainemillier,HIGH);
afficher_CD(dizainemillier);
digitalWrite(alim_millier,LOW);
digitalWrite(alim_centaine,LOW);
digitalWrite(alim_dizaine,LOW);
digitalWrite(alim_unite,LOW);
delay(5);
https://www.arduino.cc/ digitalWrite(alim_dizainemillier,LOW);
digitalWrite(alim_millier,HIGH);
afficher_CM(millier);
digitalWrite(alim_centaine,LOW);
digitalWrite(alim_dizaine,LOW);
digitalWrite(alim_unite,LOW);
delay(5);
digitalWrite(alim_dizainemillier,LOW);
digitalWrite(alim_millier,LOW);
digitalWrite(alim_centaine,HIGH);
afficher_CM(centaine);
digitalWrite(alim_dizaine,LOW);
digitalWrite(alim_unite,LOW);
delay(5);
digitalWrite(alim_dizainemillier,LOW);
digitalWrite(alim_millier,LOW);
digitalWrite(alim_centaine,LOW);
digitalWrite(alim_dizaine,HIGH);
afficher_UD(dizaine);
digitalWrite(alim_unite,LOW);
delay(5);
digitalWrite(alim_dizainemillier,LOW);
digitalWrite(alim_millier,LOW);
digitalWrite(alim_centaine,LOW);
digitalWrite(alim_dizaine,LOW);
digitalWrite(alim_unite,HIGH);
afficher_UD(unite);
delay(5);
}
}
void afficher_UD(int chiffre)
{
digitalWrite(bit_A,LOW);
digitalWrite(bit_B,LOW);
digitalWrite(bit_C,LOW);
digitalWrite(bit_D,LOW);
if(chiffre>=8)
{
digitalWrite(bit_D,HIGH);
chiffre=chiffre-8;
}
if(chiffre>=4)
{
digitalWrite(bit_C,HIGH);
chiffre=chiffre-4;
}
if(chiffre>=2)
{
digitalWrite(bit_B,HIGH);
chiffre=chiffre-2;
}
if(chiffre>=1)
{
digitalWrite(bit_A,HIGH);
chiffre=chiffre-1;
}
}
void afficher_CM(int chiffre)
{
digitalWrite(bit_E,LOW);
digitalWrite(bit_F,LOW);
digitalWrite(bit_G,LOW);
digitalWrite(bit_H,LOW);
if(chiffre>=8)
{
digitalWrite(bit_H,HIGH);
chiffre=chiffre-8;
}
if(chiffre>=4)
{
digitalWrite(bit_G,HIGH);
chiffre=chiffre-4;
}
if(chiffre>=2)
{
digitalWrite(bit_F,HIGH);
chiffre=chiffre-2;
}
if(chiffre>=1)
{
digitalWrite(bit_E,HIGH);
chiffre=chiffre-1;
}
}
void afficher_CD(int chiffre)
{
digitalWrite(bit_I,LOW);
digitalWrite(bit_J,LOW);
digitalWrite(bit_K,LOW);
digitalWrite(bit_L,LOW);
if(chiffre>=8)
{
digitalWrite(bit_L,HIGH);
chiffre=chiffre-8;
}
if(chiffre>=4)
{
digitalWrite(bit_K,HIGH);
chiffre=chiffre-4;
}
if(chiffre>=2)
{
digitalWrite(bit_J,HIGH);
chiffre=chiffre-2;
}
if(chiffre>=1)
{
digitalWrite(bit_I,HIGH);
chiffre=chiffre-1;
}
}
非常感謝