Page 27 - Proyecto - Ana Guerrero

EJERCICIO # 18

Conectar 9 diodos leds formando un cuadrado

perfecto donde los leds encenderán la forma de

una letra: X, Z, Y, A con unas resistencias de 220

ohmio.

int ld0=0; digitalWrite(ld7, HIGH); //Y
int ld1=1; digitalWrite(ld8, HIGH); digitalWrite(ld0, HIGH);
int ld2=2; delay(2000); digitalWrite(ld1, LOW);
int ld3=3; digitalWrite(ld2, HIGH);
int ld4=4; //X// digitalWrite(ld3, LOW);
int ld5=5; { digitalWrite(ld4, HIGH);
int ld6=6; digitalWrite(ld0, HIGH); digitalWrite(ld5, LOW);
int ld7=7; digitalWrite(ld1, LOW); digitalWrite(ld6, LOW);
int ld8=8; digitalWrite(ld2, HIGH); digitalWrite(ld7, HIGH);
void setup() digitalWrite(ld3, LOW); digitalWrite(ld8, LOW);
{ digitalWrite(ld4, HIGH); delay(3000);
pinMode(ld0, OUTPUT); digitalWrite(ld5, LOW);
pinMode(ld1, OUTPUT); digitalWrite(ld6, HIGH); //A
pinMode(ld2, OUTPUT); digitalWrite(ld7, LOW); digitalWrite(ld0, LOW);
pinMode(ld3, OUTPUT); digitalWrite(ld8, HIGH); digitalWrite(ld1, HIGH);
pinMode(ld4, OUTPUT); delay(2000); digitalWrite(ld2, LOW);
pinMode(ld5, OUTPUT); digitalWrite(ld3, LOW);
pinMode(ld6, OUTPUT); //Z digitalWrite(ld4, HIGH);
pinMode(ld7, OUTPUT); digitalWrite(ld5, LOW);
pinMode(ld8, OUTPUT); digitalWrite(ld0, HIGH); digitalWrite(ld6, HIGH);
digitalWrite(ld1, HIGH); digitalWrite(ld7, HIGH);
} digitalWrite(ld2, HIGH); digitalWrite(ld8, HIGH);
void loop() digitalWrite(ld3, LOW); delay(5000);
digitalWrite(ld4, HIGH);
digitalWrite(ld6, HIGH); digitalWrite(ld5, LOW); }