Easiest way to connect LCD screen to Arduino mega!

NO wires are required, This makes it interesting. (without I2c module).

May 11, 2022

•

5913 views

•

2 respects

easy methods

lcd screen

Components and supplies

Alphanumeric LCD, 16 x 2

Arduino Mega 2560

Apps and platforms

Arduino IDE

Project description

Code

The code

c_cpp

Just upload it. remove the part of code to print to get a snippet

1#include <LiquidCrystal.h>
2
3// initialize the library by associating  any needed LCD interface pin
4// with the arduino pin number it is connected to
5const  int rs = A3, en = A5, d4 = A9, d5 = A10, d6 = A11, d7 = A12;
6LiquidCrystal lcd(rs,  en, d4, d5, d6, d7);
7
8void setup() {
9  pinMode(A14,OUTPUT);
10  pinMode(A13,OUTPUT);
11   pinMode(A4,OUTPUT);
12   pinMode(A0,OUTPUT);
13   pinMode(A2,OUTPUT);
14   pinMode(A1,OUTPUT);
15   
16  digitalWrite(A14,LOW); 
17  digitalWrite(A13,HIGH); 
18   digitalWrite(A4,LOW);  
19   digitalWrite(A0,LOW);
20   digitalWrite(A2,LOW);
21   digitalWrite(A1,HIGH);
22   
23  lcd.begin(16, 2);
24  // Print a message to the LCD.
25  lcd.print("Hello,  World!");
26
27}
28
29void loop() {
30  // set the cursor to column 0, line  1
31  // (note: line 1 is the second row, since counting begins with 0):
32  lcd.setCursor(0,  1);
33  // print the number of seconds since reset:
34  lcd.print(millis() / 1000);
35}
36

#include <LiquidCrystal.h>

// initialize the library by associating  any needed LCD interface pin
// with the arduino pin number it is connected to
const  int rs = A3, en = A5, d4 = A9, d5 = A10, d6 = A11, d7 = A12;
LiquidCrystal lcd(rs,  en, d4, d5, d6, d7);

void setup() {
  pinMode(A14,OUTPUT);
  pinMode(A13,OUTPUT);
   pinMode(A4,OUTPUT);
   pinMode(A0,OUTPUT);
   pinMode(A2,OUTPUT);
   pinMode(A1,OUTPUT);
   
  digitalWrite(A14,LOW); 
  digitalWrite(A13,HIGH); 
   digitalWrite(A4,LOW);  
   digitalWrite(A0,LOW);
   digitalWrite(A2,LOW);
   digitalWrite(A1,HIGH);
   
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("Hello,  World!");

}

void loop() {
  // set the cursor to column 0, line  1
  // (note: line 1 is the second row, since counting begins with 0):
  lcd.setCursor(0,  1);
  // print the number of seconds since reset:
  lcd.print(millis() / 1000);
}

Downloadable files

Circuit connection.

Wires are just to Indicate. Not needed actually.

Circuit connection.

Wires are just to Indicate. Not needed actually.

Circuit connection.

Comments

Only logged in users can leave comments

arunav1

0 Followers

•

0 Projects

Intro