Interfacing lcd with arduino
How to interaface lcd (4-bit interface) with arduino?
In this tutorial, we are going to discuss , how to interface lcd with arduino.
We are using 16*2 lcd, means it have two rows and 16 columns. Overall, we can display 32 characters.
Lcd have 16 pins, out of which six are connected to arduino. D4-D7 are data pins. RS, RW and EN pins are also there. RW pin is permanently grounded since we are writing to lcd.
Hope, you had enjoyed the tutorial.
In this tutorial, we are going to discuss , how to interface lcd with arduino.
We are using 16*2 lcd, means it have two rows and 16 columns. Overall, we can display 32 characters.
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| 16*2 LCD |
Pin no 3 is connected to pot (10k) in order to change the contrast. Pin no 15 and 16 are for backlight.
Since lcd don't have any backlight.
Code:
// include the library code:
#include <LiquidCrystal.h>
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
void setup() {
// set up the LCD's number of columns and rows:
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);
}
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| Simulation in proteus |
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[original story: FunWithElectronics]