Arduino

Projectes

Comptador

Per a fer aquest comptador utlitzem un Display BCD i un xip cd4511be

Si tenim en compte que el xip decodificador té aquestes entrades:

i el display aquestes:

Les connexions quedaran:

Arduino	cd4511be
2	A
3	B
4	C
5	D
5v	Vdd, LT, BL
GND	VSS, LE

void setup()
{
 
  for (int i=2;i<6;i++){ 
  pinMode(i,OUTPUT);
  }
  
}

void loop()
{
  

  digitalWrite(2,0);
  digitalWrite(3,0);
  digitalWrite(4,0);
  digitalWrite(5,0);
  delay(1000);
  
  digitalWrite(2,1);
  digitalWrite(3,0);
  digitalWrite(4,0);
  digitalWrite(5,0);
  delay(1000);
  
  digitalWrite(2,0);
  digitalWrite(3,1);
  digitalWrite(4,0);
  digitalWrite(5,0);
  delay(1000);
  
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,0);
  digitalWrite(5,0);
  delay(1000);
  
  digitalWrite(2,0);
  digitalWrite(3,0);
  digitalWrite(4,1);
  digitalWrite(5,0);
  delay(1000);
  
  digitalWrite(2,1);
  digitalWrite(3,0);
  digitalWrite(4,1);
  digitalWrite(5,0);
  delay(1000);
 
  digitalWrite(2,0);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,0);
  delay(1000);
  
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,0);
  delay(1000);
  
  
  digitalWrite(2,0);
  digitalWrite(3,0);
  digitalWrite(4,0);
  digitalWrite(5,1);
  delay(1000);
  
  
  digitalWrite(2,1);
  digitalWrite(3,0);
  digitalWrite(4,0);
  digitalWrite(5,1);
  delay(1000);
}

Enllaços

http://learn.adafruit.com/all-about-leds?view=all http://www.sentex.ca/~mec1995/tutorial/7seg/7seg.html http://www.ti.com/lit/ds/symlink/cd4511b.pdf http://www.hacktronics.com/Tutorials/arduino-and-7-segment-led.html