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4x20 LCD display - Blue - with HD44780 compatible controller - QC2004A

4x20 LCD display - Blue - with HD44780 compatible controller - QC2004A

Universal alphanumeric LCD display, powered by 5 volts. It is characterized by simple operation, high availability and numerous support for many microcontrollers. 4x20 LCD display with HD44780 compatible controller - QC2004A

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5pcs.$5.73(-5%)

10pcs.$5.55(-8%)

20pcs.$5.43(-10%)

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4x20 LCD display - Blue - with HD44780 compatible controller - QC2004A

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Alphanumeric LCD 4x20 HD44780 - Blue LCD QC2004A

wyswietlacz lcd 4x20 hd44780

Universal alphanumeric LCD 4x20 , powered by 5 volts.

It is characterized by simple operation, high availability and numerous support for many microcontrollers.
With libraries, you can easily hook up the display to an Arduino and display subtitles. The library gives you the ability to select the column and row in which to display the inscription, or string of digits.

So you can display a great deal of information in a clear way.

The display is integral in the world of electronics, because sometimes the project will not be near a computer and there will be no way to display information on its screen.

If the display uses too many pins, you can buy an I2C converter so that the LCD will be connected through 4 wires (power +, minus -, SCL and SDA).

Product features

Universal alphanumeric LCD display module 4x20 characters.
4x20 LCD display
Blue backlighting
White marks
HD44780 compliant driver.
Ability to define your characters
In the standard set of libraries and sample programs downloaded from the Arduino environment is the LiquidCrystal library, which allows you to operate the display.
Control - The display can be controlled in modes:

8-bit without reading the busy flag - eight data bus lines and two control lines (RS, E - RW connected to ground) are required for transmission.
8-bit with busy flag reading - eight data bus lines and three control lines (RS, E, RW) are required for transmission.
4-bit with read busy flag- four data bus lines and three control lines(RS, E, RW) are needed for transmission.
4-bit without reading the busy flag - transmission requires four data bus lines and two control lines (RS, E - RW connected to ground).

Our expert suggests

The display works with the liquid crystal library, but the following changes are needed: Connecting to the microcontroller: RS - pin 12, RW - pin 14, E - pin 11, D4 - pin 7, D5 - pin 8, D6 - pin 9, D7 - pin 10.

The program from the Arduino side looks as follows:

When we have an I2C converter soldered to the display Sketch presents itself like this:

Technical data

Power supply: 5V
Average current consumption: 10 mA
Dimensions: 96x60x33.5
Sign dimensions: 2.45 x 5.00 mm
Operating temperature range: -20 to +70 °C

Connector outputs

VSS Mass
VDD Power +5V
V0 Contrast
RS Selection of display instruction register (low state) or data register(high state)
R/W Read (low state) / Write (high state)
E Unlocking the display
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
LED A Backlight power supply +5V
LED K Backlight weight

Video presentation - Connecting the LCD 1602 to the Arduino - a model with fewer characters

Example of connection to a microcontroller - The diagram shows the simplest way to connect the circuit to any microcontroller using a single-wire interface.

Wyświetlacz LCD 2x16 HD44780

Instructions for 2x16 HD44780 LCD Display

LCD-20x4b

Brand

ABC-RC

Symbol

6311

Producer code

5904384720224

Status

New

Manufacturer

unbranded

Model

LCD4x20

Rodzaj

display

Manufacturer code

6311

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Guide

Wyświetlacze ciekłokrystaliczne i ledowe

Mamy za sobą podłączenie czujników do Arduino. Więc warto dane, które z nich wychodzą wyświetlić na zewnętrznym wyświetlaczu. Tak aby cały system działał niezależnie od komputera i w dodatku lepiej wyglądał. Wiedza ta też pozwoli nam na stworzenie ciekawych projektów.

Wyświetlacze – czyli sposoby na wygodne wyświetlanie danych!

Podczas tworzenia projektów z Arduino, czy też z innymi mikrokontrolerami często mamy dylemat, w jaki sposób wyświetlić dane z czujników, czy też stworzyć wygodne menu i wtedy z pomocą przychodzą nam wyświetlacze!

DIY czujnik temperatury z alarmem, termostatem i innymi bajerami na dalekie odległości!

Ten projekt ma na celu ułatwienie monitorowania temp. na odległość drogą radiową, a także informowania o przekroczeniu ustawionej temp. głośnym sygnałem buzzera. Jeżeli potrzebujesz podobnego rozwiązania to znajdziesz je właśnie tutaj!

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