Description

Technical Parameters

Product Introduction

20x4 lcd display

is a character LCD capable of displaying 20 columns x 4 rows of characters. With the addition of an I2C module, it requires only two signal lines (SCL and SDA) for control, significantly reducing the number of IO ports on the microcontroller/Arduino. This allows the LCD to be connected via a serial port, rather than a traditional parallel port.

20x4 character lcd display

This type of screen can only display text and symbols, is suitable for text display, and supports user-defined characters (for example, displaying simple icons).

20x4 lcd screen

Most 20x4 character LCDs have LED backlights to ensure clear display even in low light environments. The backlight color is usually blue, white or green.

2004A display Parameter (specification)

Module Size ：116X36X 13.4/10.9mm	Display View Area ：83X18.4mm
LCD Type：STN/POSITIVE/TRANSFLECTIVE	View Angle：6 O'clock
Driver IC：SPLC780D OR Equivalent(AIP31066)	Backlight Driver Type：Power/3.3V/5.0VHITE
DC To DC circuit：Build-In	Weight：TBD

PIN	SYMBOL
1	Vss
2	Vdd
3	Vo
4	RS
5	R/W
6	E
7	DB0
8	DB1
9	DB2
10	DB3
11	DB4
12	DB5
13	DB6
14	DB7
15	A
16	K

2004A display Similar products

FAQ

Q: How many characters can 20x4 character lcd?

A: A 20x4 character LCD display can display 80 characters, with each character consisting of a 5x8 dot matrix (or 5x10 dot matrix).

Q: How do I connect 20 * 4 lcd display to an Arduino?

A: Parallel interface: Connect at least eight data pins and four control pins (RS, E, RW, V0) to drive the LCD.
I2C interface: Connect two data lines, SDA and SCL, to simplify wiring.

Q: What is the lifespan of a 2004 lcd arduino?

A: The lifespan of an LCD is generally related to the lifespan of its backlight LEDs, which typically last between 20,000 and 50,000 hours.

Q: What should I do if my LCD display displays garbled characters?

A: Make sure all connections are correct, especially the data and control pins.

The LCD needs to be initialized correctly; ensure the correct initialization sequence is set in the program.

Insufficient power supply voltage can also cause display instability or garbled characters.

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