How to connect LCD Display to Arduino Uno

In this blog, we are going to learn how to connect an LCD display (16 x 2) to Arduino UNO. Display units play an important role in establishing good communication between the human and machine worlds. And so they are a big part of embedded systems. 

Introduction

The 16×2 LCD will have a total of 32 characters 16 in 1st line and a further 16 in 2nd line. In 16×2 LCD there are 16 pins overall if there is a backlight, 14 pins if there is no backlight In each character there are 50 pixels.

Components Required

Hardware: 

• ARDUINO UNO
• power supply (5v)
• (16x2LCD),
• 100uF capacitor.
• Breadboard

Software:

•  Arduino IDE
• LiquidCrystal Library

Circuit connection of LCD Display To Arduino Uno

Now let’s build the circuit. A circuit layout can be described in several ways. For this project ( How To Connect LCD 16×2 Display To Arduino ), we are using a physical layout diagram similar to the one shown in the above figure 2.

By comparing the wiring diagram with the sketched functions, You should start making sense of the circuit.

• LCD RS pin to digital pin 12
• LCD Enable pin to digital pin 11
• LCD D4 pin to digital pin 5
• LCD D5 pin to digital pin 4
• LCD D6 pin to digital pin 3
• LCD D7 pin to digital pin 2
• LCD R/W pin to ground
• LCD VSS pin to ground
• LCD VCC pin to 5V
• 10K resistor
• ends to +5V and ground
• wiper to LCD VO pin (pin 3)

If you want to see the stimulation of the project. Click here https://www.tinkercad.com/things/bg9LRuK48VV.

In this blog, we understood how to connect the LCD screen to Arduino UNO. In the next blog, I will cover how to display text on an LCD screen using the Arduino IDE.