Un display LCD 1604, 1602, 2004 etc poate afisa caractere alfanumerice deoarece pentru afisare foloseste o matrice de 8*5 puncte. In aceasta matrice noi putem afisa ce informatie dorim (in limita ceor 40 de puncte disponibile in matrice pentru fiecare pozitie disponibila) si, astfel, putem tipari diferite simboluri pe ecran.
Pentru a ne crea propriile simbolri putem folosi un editor grafic, acesta se gaseste aici si se numeste LCD Custom Character Generator.
Pentru a adauga aceste caractere la un sketch va trebui sa folosim urmatorul cod:
byte lacatDeschis[] = {
B01110,
B10001,
B10000,
B10000,
B11111,
B11011,
B11011,
B11111
}; /creeam un array cu caracterul dorit
void setup() {
lcd.createChar(0, lacatInchis); //creem caracterul pentru a fi afisat pe display
}
void loop() {
lcd.write(byte(0)); //afisam caracterul pe display
}
Pentru afisarea pe un display LCD vom folosi informatiile din acest articol pentru a conecta afisajul la Arduino.
In sketch vom afisa grupuri de cate 8 iconite. Sketch-ul arata asa:
#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
byte lacatInchis[] = {
B01110, B10001, B10001, B10001, B11111, B11011, B11011, B11111
};
byte lacatDeschis[] = {
B01110, B10001, B10000, B10000, B11111, B11011, B11011, B11111
};
byte sageataSus[] = {
B00100, B01110, B11111, B00100, B00100, B00100, B00000, B00000
};
byte sageataJos[] = {
B00000, B00000, B00100, B00100, B00100, B11111, B01110, B00100
};
byte sageataDreapta[] = {
B00000, B00100, B00110, B11111, B00110, B00100, B00000, B00000
};
byte sageataStanga[] = {
B00000, B00100, B01100, B11111, B01100, B00100, B00000, B00000
};
byte sad[] = {
B00000, B01010, B00000, B00000, B01110, B10001, B00000, B00000
};
byte lol[] = {
B00000, B01010, B00000, B00000, B11111, B10001, B01110, B00000
};
void setup() {
lcd.begin(16,4);
lcd.setCursor ( 0, 0 );
lcd.print (" www.");
lcd.setCursor (0, 1 );
lcd.print ("electronicstore");
lcd.setCursor (0, 2 );
lcd.print (" .ro");
lcd.setCursor (0, 3 );
lcd.print ("****************");
delay (1500);
lcd.clear();
lcd.setCursor ( 0, 0 );
lcd.print ("Simboluri");
lcd.setCursor (0, 1 );
lcd.print ("grafice");
lcd.setCursor (0, 2 );
lcd.print ("personalizate");
lcd.setCursor (0, 3 );
lcd.print ("****************");
delay (1500);
lcd.clear();
lcd.createChar(0, lacatInchis);
lcd.createChar(1, lacatDeschis);
lcd.createChar(2, sageataStanga);
lcd.createChar(3, sageataDreapta);
lcd.createChar(4, sageataSus);
lcd.createChar(5, sageataJos);
lcd.createChar(6, sad);
lcd.createChar(7, lol);
}
void loop() {
lcd.setCursor ( 0, 0 );
lcd.print("simboluri grafice");
lcd.setCursor (0,2 );
lcd.print ("electronicstore");
lcd.setCursor (0, 3 );
lcd.print (" .ro");
delay(1000);
lcd.setCursor ( 0, 1 );
lcd.write(byte(0));
delay(500);
lcd.setCursor ( 2, 1 );
lcd.write(byte(1));
delay(500);
lcd.setCursor ( 4, 1 );
lcd.write(byte(2));
delay(500);
lcd.setCursor ( 6, 1 );
lcd.write(byte(3));
delay(500);
lcd.setCursor ( 8, 1 );
lcd.write(byte(4));
delay(500);
lcd.setCursor ( 10, 1 );
lcd.write(byte(5));
delay(500);
lcd.setCursor ( 12, 1 );
lcd.write(byte(6));
delay(500);
lcd.setCursor ( 14, 1 );
lcd.write(byte(7));
delay(500);
lcd.clear();
delay(200);
}Daca dorim sa folosim alte iconite am realizat mai jos o colectie din care puteti alege ce iconita doriti si sa o folositi in aplicatia voasrta:
byte lacatDeschis[] = {
B01110,
B10001,
B10000,
B10000,
B11111,
B11011,
B11011,
B11111
};
byte impuls[] = {
B00000,
B00000,
B01110,
B01010,
B01010,
B01010,
B01010,
B11011
};
byte ceas[] = {
B01110,
B10101,
B10111,
B10001,
B01110,
B00000,
B00000,
B00000
};
byte clepsidra[] = {
B00000,
B11111,
B11111,
B01110,
B00100,
B01010,
B10001,
B11111
};
byte robotel[] = {
B11111,
B10101,
B11111,
B11111,
B01110,
B01010,
B11011,
B00000
};
byte ohm[] = {
B00000,
B01110,
B10001,
B10001,
B10001,
B01010,
B11011,
B00000
};
byte steluta[] = {
B00000,
B00000,
B00100,
B00100,
B11111,
B01110,
B01010,
B10001
};
byte inima[] = {
B00000,
B00000,
B01010,
B11111,
B11111,
B01110,
B00100,
B00000
};
byte clopot[] = {
B00000,
B00000,
B00100,
B01110,
B01110,
B11111,
B00100,
B00000
};
byte craniu[] = {
B00000,
B00000,
B01110,
B10101,
B11011,
B01110,
B01110,
B00000
};
byte peste[] = {
B10000,
B00000,
B01000,
B10000,
B00000,
B01101,
B11110,
B01101
};
byte soare[] = {
B00000,
B00100,
B10101,
B01110,
B11111,
B01110,
B10101,
B00100
};
byte termometru[] = {
B00100,
B01010,
B01010,
B01110,
B01110,
B11111,
B11111,
B01110
};
byte picatura[] = {
B00100,
B00100,
B01010,
B01010,
B10001,
B10001,
B10001,
B01110
};
byte batery1[] = {
B01110,
B11011,
B10001,
B10001,
B10001,
B10001,
B10001,
B11111
};
byte batery2[] = {
B01110,
B11011,
B10001,
B10001,
B10001,
B10001,
B11111,
B11111
};
byte batery3[] = {
B01110,
B11011,
B10001,
B10001,
B10001,
B11111,
B11111,
B11111
};
byte batery4[] = {
B01110,
B11011,
B10001,
B10001,
B11111,
B11111,
B11111,
B11111
};
byte batery5[] = {
B01110,
B11011,
B10001,
B11111,
B11111,
B11111,
B11111,
B11111
};
byte batery6[] = {
B01110,
B11011,
B11111,
B11111,
B11111,
B11111,
B11111,
B11111
};
byte batery7[] = {
B01110,
B11111,
B11111,
B11111,
B11111,
B11111,
B11111,
B11111
};
byte batery8[] = {
B01110,
B11111,
B10101,
B10101,
B11011,
B11011,
B11111,
B11111
};
byte celsius[] = {
B00110,
B01001,
B01001,
B00110,
B00000,
B00000,
B00000,
B00000
};
byte notaMuzicala[] = {
B00001,
B00011,
B00101,
B01001,
B01001,
B01011,
B11011,
B11000
};
byte difuzor[] = {
B00001,
B00011,
B00111,
B11111,
B11111,
B00111,
B00011,
B00001
};
byte stecher[] = {
B01010,
B01010,
B11111,
B10001,
B10001,
B01110,
B00100,
B00100
};
byte check[] = {
B00000,
B00000,
B00000,
B00001,
B00011,
B10110,
B11100,
B01000
};
byte omulet[] = {
B01110,
B01110,
B00100,
B01110,
B10101,
B00100,
B01010,
B01010
};
byte sageataSus[] = {
B00100,
B01110,
B11111,
B00100,
B00100,
B00100,
B00000,
B00000
};
byte sageataJos[] = {
B00000,
B00000,
B00100,
B00100,
B00100,
B11111,
B01110,
B00100
};
byte smyle[] = {
B00000,
B00000,
B01010,
B00000,
B00000,
B10001,
B01110,
B00000
};
byte lol[] = {
B00000,
B01010,
B00000,
B00000,
B11111,
B10001,
B01110,
B00000
};
byte sad[] = {
B00000,
B01010,
B00000,
B00000,
B01110,
B10001,
B00000,
B00000
};
byte sageataDreapta[] = {
B00000,
B00100,
B00110,
B11111,
B00110,
B00100,
B00000,
B00000
};
byte sageataStanga[] = {
B00000,
B00100,
B01100,
B11111,
B01100,
B00100,
B00000,
B00000
};Un filmulet cu montajul in functione este mai jos: