LCD Custom Character

Custom character coding for a LCD without using potentiometer

Nov 19, 2020

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lights

smart appliances

monitoring

Components and supplies

Arduino UNO

Jumper wires (generic)

Alphanumeric LCD, 16 x 2

PHPoC Bread Board

Apps and platforms

Arduino IDE

Project description

Code

CIRCUIT CODE

arduino

1// CIRCUIT DIAGRAM
2 //VSS:GND
3 //VDD:5V
4 //VO:PIN 6
5 //RS:PIN  12
6 //RW:GND
7 //E:PIN 11
8 //D4:PIN 5
9 //D5:PIN 4
10 //D6:PIN 3
11  //D7:PIN 2
12 //A:5V
13 //K:GND
14 #include <LiquidCrystal.h> 
15 int Contrast=100;
16  LiquidCrystal lcd(12, 11, 5, 4, 3, 2);  
17 byte c1[8]={0b01110,0b01010,0b01010,0b11111,0b11111,0b11111,0b11111,0b11111};//LOCK
18  byte c2[8]={0b00000,0b01110,0b10101,0b11011,0b01110,0b01110,0b00000,0b00000};//SKULL  CLOSE
19 byte c3[8]={0b00000,0b01110,0b10101,0b11011,0b01110,0b00000,0b01110,0b00000};//SKULL  OPEN
20 void setup() {
21     analogWrite(6,Contrast);
22     lcd.begin(16, 2);
23     lcd.clear();
24 }
25void loop() {
26   lcd.setCursor(0 ,0);
27   lcd.print("CUSTOM  CHARACTER");
28   
29   lcd.createChar(0 , c1);   
30   lcd.setCursor(3 ,1);
31   lcd.print(char(0));
32   
33   lcd.setCursor(12 ,1);
34   lcd.print(char(0));
35   delay(2000);  
36   lcd.clear();
37   
38  lcd.createChar(1 , c2);
39   lcd.setCursor(4  ,1);
40   lcd.print(char(1));
41   delay(100);
42   lcd.clear();
43   
44   lcd.createChar(2  , c3);
45   lcd.setCursor(5 ,1);
46   lcd.print(char(2));
47   delay(200);
48   lcd.clear();
49
50lcd.createChar(1 , c2);
51   lcd.setCursor(6 ,1);
52   lcd.print(char(1));
53   delay(300);
54   lcd.clear();
55   
56   lcd.createChar(2 , c3);
57   lcd.setCursor(7  ,1);
58   lcd.print(char(2));
59   delay(400);
60   lcd.clear();
61
62lcd.createChar(1  , c2);
63   lcd.setCursor(8 ,1);
64   lcd.print(char(1));
65   delay(500);
66   lcd.clear();
67   
68   lcd.createChar(2 , c3);
69   lcd.setCursor(9 ,1);
70   lcd.print(char(2));
71   delay(600);
72   lcd.clear();
73
74lcd.createChar(1  , c2);
75   lcd.setCursor(10 ,1);
76   lcd.print(char(1));
77   delay(700);
78   lcd.clear();
79   
80   lcd.createChar(2 , c3);
81   lcd.setCursor(11 ,1);
82   lcd.print(char(2));
83   delay(800);
84   lcd.clear();
85   
86  
87   }

// CIRCUIT DIAGRAM
 //VSS:GND
 //VDD:5V
 //VO:PIN 6
 //RS:PIN  12
 //RW:GND
 //E:PIN 11
 //D4:PIN 5
 //D5:PIN 4
 //D6:PIN 3
  //D7:PIN 2
 //A:5V
 //K:GND
 #include <LiquidCrystal.h> 
 int Contrast=100;
  LiquidCrystal lcd(12, 11, 5, 4, 3, 2);  
 byte c1[8]={0b01110,0b01010,0b01010,0b11111,0b11111,0b11111,0b11111,0b11111};//LOCK
  byte c2[8]={0b00000,0b01110,0b10101,0b11011,0b01110,0b01110,0b00000,0b00000};//SKULL  CLOSE
 byte c3[8]={0b00000,0b01110,0b10101,0b11011,0b01110,0b00000,0b01110,0b00000};//SKULL  OPEN
 void setup() {
     analogWrite(6,Contrast);
     lcd.begin(16, 2);
     lcd.clear();
 }
void loop() {
   lcd.setCursor(0 ,0);
   lcd.print("CUSTOM  CHARACTER");
   
   lcd.createChar(0 , c1);   
   lcd.setCursor(3 ,1);
   lcd.print(char(0));
   
   lcd.setCursor(12 ,1);
   lcd.print(char(0));
   delay(2000);  
   lcd.clear();
   
  lcd.createChar(1 , c2);
   lcd.setCursor(4  ,1);
   lcd.print(char(1));
   delay(100);
   lcd.clear();
   
   lcd.createChar(2  , c3);
   lcd.setCursor(5 ,1);
   lcd.print(char(2));
   delay(200);
   lcd.clear();

lcd.createChar(1 , c2);
   lcd.setCursor(6 ,1);
   lcd.print(char(1));
   delay(300);
   lcd.clear();
   
   lcd.createChar(2 , c3);
   lcd.setCursor(7  ,1);
   lcd.print(char(2));
   delay(400);
   lcd.clear();

lcd.createChar(1  , c2);
   lcd.setCursor(8 ,1);
   lcd.print(char(1));
   delay(500);
   lcd.clear();
   
   lcd.createChar(2 , c3);
   lcd.setCursor(9 ,1);
   lcd.print(char(2));
   delay(600);
   lcd.clear();

lcd.createChar(1  , c2);
   lcd.setCursor(10 ,1);
   lcd.print(char(1));
   delay(700);
   lcd.clear();
   
   lcd.createChar(2 , c3);
   lcd.setCursor(11 ,1);
   lcd.print(char(2));
   delay(800);
   lcd.clear();
   
  
   }

CIRCUIT CODE

arduino

1// CIRCUIT DIAGRAM
2 //VSS:GND
3 //VDD:5V
4 //VO:PIN 6
5 //RS:PIN   12
6 //RW:GND
7 //E:PIN 11
8 //D4:PIN 5
9 //D5:PIN 4
10 //D6:PIN 3
11   //D7:PIN 2
12 //A:5V
13 //K:GND
14 #include <LiquidCrystal.h> 
15 int Contrast=100;
16   LiquidCrystal lcd(12, 11, 5, 4, 3, 2);  
17 byte c1[8]={0b01110,0b01010,0b01010,0b11111,0b11111,0b11111,0b11111,0b11111};//LOCK
18   byte c2[8]={0b00000,0b01110,0b10101,0b11011,0b01110,0b01110,0b00000,0b00000};//SKULL   CLOSE
19 byte c3[8]={0b00000,0b01110,0b10101,0b11011,0b01110,0b00000,0b01110,0b00000};//SKULL   OPEN
20 void setup() {
21     analogWrite(6,Contrast);
22     lcd.begin(16, 2);
23      lcd.clear();
24 }
25void loop() {
26   lcd.setCursor(0 ,0);
27   lcd.print("CUSTOM   CHARACTER");
28   
29   lcd.createChar(0 , c1);   
30   lcd.setCursor(3 ,1);
31    lcd.print(char(0));
32   
33   lcd.setCursor(12 ,1);
34   lcd.print(char(0));
35    delay(2000);  
36   lcd.clear();
37   
38  lcd.createChar(1 , c2);
39   lcd.setCursor(4   ,1);
40   lcd.print(char(1));
41   delay(100);
42   lcd.clear();
43   
44   lcd.createChar(2   , c3);
45   lcd.setCursor(5 ,1);
46   lcd.print(char(2));
47   delay(200);
48    lcd.clear();
49
50lcd.createChar(1 , c2);
51   lcd.setCursor(6 ,1);
52   lcd.print(char(1));
53    delay(300);
54   lcd.clear();
55   
56   lcd.createChar(2 , c3);
57   lcd.setCursor(7   ,1);
58   lcd.print(char(2));
59   delay(400);
60   lcd.clear();
61
62lcd.createChar(1   , c2);
63   lcd.setCursor(8 ,1);
64   lcd.print(char(1));
65   delay(500);
66    lcd.clear();
67   
68   lcd.createChar(2 , c3);
69   lcd.setCursor(9 ,1);
70    lcd.print(char(2));
71   delay(600);
72   lcd.clear();
73
74lcd.createChar(1   , c2);
75   lcd.setCursor(10 ,1);
76   lcd.print(char(1));
77   delay(700);
78    lcd.clear();
79   
80   lcd.createChar(2 , c3);
81   lcd.setCursor(11 ,1);
82    lcd.print(char(2));
83   delay(800);
84   lcd.clear();
85   
86  
87   }

// CIRCUIT DIAGRAM
 //VSS:GND
 //VDD:5V
 //VO:PIN 6
 //RS:PIN   12
 //RW:GND
 //E:PIN 11
 //D4:PIN 5
 //D5:PIN 4
 //D6:PIN 3
   //D7:PIN 2
 //A:5V
 //K:GND
 #include <LiquidCrystal.h> 
 int Contrast=100;
   LiquidCrystal lcd(12, 11, 5, 4, 3, 2);  
 byte c1[8]={0b01110,0b01010,0b01010,0b11111,0b11111,0b11111,0b11111,0b11111};//LOCK
   byte c2[8]={0b00000,0b01110,0b10101,0b11011,0b01110,0b01110,0b00000,0b00000};//SKULL   CLOSE
 byte c3[8]={0b00000,0b01110,0b10101,0b11011,0b01110,0b00000,0b01110,0b00000};//SKULL   OPEN
 void setup() {
     analogWrite(6,Contrast);
     lcd.begin(16, 2);
      lcd.clear();
 }
void loop() {
   lcd.setCursor(0 ,0);
   lcd.print("CUSTOM   CHARACTER");
   
   lcd.createChar(0 , c1);   
   lcd.setCursor(3 ,1);
    lcd.print(char(0));
   
   lcd.setCursor(12 ,1);
   lcd.print(char(0));
    delay(2000);  
   lcd.clear();
   
  lcd.createChar(1 , c2);
   lcd.setCursor(4   ,1);
   lcd.print(char(1));
   delay(100);
   lcd.clear();
   
   lcd.createChar(2   , c3);
   lcd.setCursor(5 ,1);
   lcd.print(char(2));
   delay(200);
    lcd.clear();

lcd.createChar(1 , c2);
   lcd.setCursor(6 ,1);
   lcd.print(char(1));
    delay(300);
   lcd.clear();
   
   lcd.createChar(2 , c3);
   lcd.setCursor(7   ,1);
   lcd.print(char(2));
   delay(400);
   lcd.clear();

lcd.createChar(1   , c2);
   lcd.setCursor(8 ,1);
   lcd.print(char(1));
   delay(500);
    lcd.clear();
   
   lcd.createChar(2 , c3);
   lcd.setCursor(9 ,1);
    lcd.print(char(2));
   delay(600);
   lcd.clear();

lcd.createChar(1   , c2);
   lcd.setCursor(10 ,1);
   lcd.print(char(1));
   delay(700);
    lcd.clear();
   
   lcd.createChar(2 , c3);
   lcd.setCursor(11 ,1);
    lcd.print(char(2));
   delay(800);
   lcd.clear();
   
  
   }

Downloadable files

RESULT

CIRCUIT FRAMEWORK

RESULT

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