Плата модуля 5 в LCD2004 с параллельным адаптером IIC/I2C 20X4 204 ЖК дисплей А

5V LCD2004 Module Board with IIC/I2C Adapter Parallel 20X4 204 LCD 2004A Display

LCD2004 display is a dot matrix module designed to display 20 characters including letter, number, and symbol, supporting 4-bit and 8-bit data transmission mode. It's quite convenient for beginners to call the built-in library Liquid Crystal of IDE, no need to edit yourself.

Working voltage: 5V; Contrast adjustable with a 50K potentiometer onside. To use the 3.3V backlight, just connect pin A to 3.3V, pin K to GND.

Note: Solder the pin headers on it before using.

Pins' Function

VSS: Connected to ground

VDD: Connected to a +5V power supply

VO: To adjust the contrast

RS: A register select pin that controls where in the LCD's memory you are writing data to. You can select either the data register, which holds what goes on the screen, or an instruction register, which is where the LCD's controller looks for instructions on what to do next.

R/W: A Read/Write pin to select between reading and writing mode

E: An enabling pin that, when low-level energy is supplied, causes the LDC module to execute relevant instructions.

D0-D7: To read and write data

A and K: Pins that control the LCD backlight

5V LCD2004 Module Board with IIC/I2C Adapter Parallel 20X4 204 LCD 2004A Display