4x20 characters LCD Display with yellow/green backlight

4x20 characters LCD Display with yellow/green backlight
  • Výrobce: Distar
  • Kat. číslo výrobce: DS-C2004A2- YFSDYE-NAA
  • Hmotnost: 75g
  • Záruka (měsíců): 24
Kód produktu: AD145
Cena bez DPH: 350,00 Kč
Cena s DPH: 423,50 Kč
Dostupnost: Na vyžádání

4x20 characters LCD Display with yellow/green backlight

Description: This is a LCD Display Module with 4x20 characters and yellow/green LED backlight. LCD display uses STN technology so it has a great contrast and a wide viewing angle. Display module is controlled by SPLC780D (same as common HD44780) parallel interface chipset that is easy to use.

There is an example below about using together with Arduino board. You can also control this display easily over a single-wire serial interface using Serial Enabled LCD Backpack.


Pin Number Symbol  Level  Description
1 VSS 0V   Ground
2 VDD 5V  Supply Voltage for logic
3 V0 (variable)  Operating Voltage for LCD
4 RS H/L  H: DATA, L:Instruction code
5 R/W H/L  H: Read (MPU->Module), L: Write (MPU->Module)
6 E H,H->L Chip enable signal
7 DB0 H/L Data bit 0
8 DB1 H/L  Data bit 1
9 DB2 H/L Data bit 2
10 DB3 H/L Data bit 3
11 DB4 H/L Data bit 4
12 DB5 H/L Data bit 5
13 DB6 H/L Data bit 6
14 DB7 H/L Data bit 7
15 LED+   Anode of LED Backlight
16 LED-   Cathode of LED Backlight



  • Number of Characters: 20 characters x 4 Lines
  • Character Table: English-European (RS in Datasheet
  • Viewing area: 77.0 x 26.5 mm, Active area: 70.4 x 20.8 mm
  • Dot size: 0.55 x 0.55 mm
  • Dot pitch: 0.60 x 0.60 mm, Character size: 2.95 x 4.75 mm
  • Character pitch: 3.55 x 5.35 mm
  • LCD type: Yellow-green STN Positive, Transflective
  • Backlight Type: Yellow/Green LED
  • Viewing direction: 6 O’clock
  • Supply Voltage For Logic: 5V 
  • Supply Voltage of backlight: 3,8 - 4,2 V (180mA)
  • Operating Temperature -20 to +70 °C

Dimensions: 98 x 60 x 14 mm (max)




Example of usage together with an Arduino Board

There is a basic example of display connection to an Arduino Board. It is very simple and supported by standard Arduino libraries.

The display backlight is supplied from Arduino 5V through 12 Ohm resistor and the contrast voltage is provided by 10kOhm potentiometer.

Suitable connector, resistor and potentiometer are included in 4x20 characters LCD Display Kit.




#include <LiquidCrystal.h>

 LiquidCrystal display with:
 LCD 1 (0V) to arduino ground pin 14 
 LCD 2 (5V) to arduino +5 V
 LCD 3 (V0) to output from potentiometer 10kOhm connected between +5 V and GND
 LCD 4 (RS) to arduino pin 12
 LCD 5 (R/W) to arduino ground
 LCD 6 (E) to arduino pin 11
 LCD 11 (DB4), 12 (DB5), 13 (DB6), 14 (DB7) on arduino pins 7, 8, 9, 10 
 LCD15 (LED+) through resistor 12 Ohm to arduino +5 V
 LCD16 (LED-) to arduino ground 

LiquidCrystal lcd(12, 14, 11, 7, 8, 9, 10);

void setup()
  lcd.begin(20, 4); //lcd.begin(columns, rows)
  lcd.setCursor(2,0); // Position cursor on line x=3,y=1
  lcd.print("4x20 LCD DISPLAY"); // Print a message to the LCD
  lcd.print("with controller");
  lcd.print("useful for Arduino");

void loop()

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