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.
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.
- ARDUINO UNO
- power supply (5v)
- 100uF capacitor.
- 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.