Montage pour un afficheur 7 segments

Présentation l'afficheur 7 ségments (à cathode commune)

Exemple

Câblage

Exemple de programme

Le programme ci-dessous affiche alternativement 0 et 1 au rythme de la seconde.

void setup()
{
  //
  pinMode(2, OUTPUT); //led e
  pinMode(3, OUTPUT); //led d
  pinMode(4, OUTPUT); //led c
  pinMode(5, OUTPUT); //led b
  pinMode(6, OUTPUT); //led a
  pinMode(7, OUTPUT); //led f
  pinMode(8, OUTPUT); //led g
}

void loop()
{
  digitalWrite(2, HIGH); //led e                                        
  digitalWrite(3, HIGH); //led d
  digitalWrite(4, HIGH); //led c
  digitalWrite(5, HIGH); //led b
  digitalWrite(6, HIGH); //led a
  digitalWrite(7, HIGH); //led f
  digitalWrite(8, LOW); //led g
  delay(1000);
  digitalWrite(2, LOW); //led e                                        
  digitalWrite(3, LOW); //led d
  digitalWrite(4, HIGH); //led c
  digitalWrite(5, HIGH); //led b
  digitalWrite(6, LOW); //led a
  digitalWrite(7, LOW); //led f
  digitalWrite(8, LOW); //led g
  delay(1000);
}