LCM2002A 20x2 LCD Module Character LCD Display 5V HD44780 Compatible Screen
LCM2002A 20x2 LCD Module Character LCD Display 5V HD44780 Compatible Screen
Price: $22.00
$20.00/ piece
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LCM2002A
LCM2002A

LCM2002A 20x2 LCD Module Character LCD Display 5V HD44780 Compatible Screen

Price: $22.00
$20.00/ piece
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LCM2002A 20x2 LCD Module Character LCD Display 5V HD44780 Compatible Screen

Product Information Product Specifications
Model:
LCM2002A
Application:
Industrial
Resolution:
20×2
Brightness:
N/A (Character LCD)
Contrast Ratio:
12:1
Viewing Angle:
35/40/50/50
Lamp Type:
YG-LED
Signal Interface:
CPU
Panel Type:
LCM
Support Color:
Monochrome
Ordering instructions
Quality:
test ok before ship it
RMA Policy:
RMA 6 month
Sample:
Paid Sample
Stock:
99
Stock Location:
China
Delivery:
WorldWide
Lead Time:
1-3 Days
Weight:
1.000 KG
Overview

LCM2002A 20×2 Character LCD Display Module


The LCM2002A is a 20-character × 2-line alphanumeric LCD module widely used in embedded systems, industrial controllers, instruments, and DIY electronics projects. It is based on the HD44780-compatible controller architecture, making it highly compatible with microcontrollers such as Arduino, STM32, PIC, and Raspberry Pi.

This module displays ASCII characters, numbers, and simple symbols, making it ideal for status display, measurement readouts, and simple user interfaces.


Key Features

20 characters × 2 lines display format

Built-in HD44780-compatible controller (or equivalent)

5×8 dot character matrix

5V standard operation (3.3V compatible variants available)

LED backlight (blue, green, or yellow options depending on version)

4-bit or 8-bit parallel interface

Adjustable contrast via potentiometer

Low power consumption

Simple microcontroller integration

Widely available and cost-effective


Technical Specifications

SpecificationDetails
ModelLCM2002A
Display TypeCharacter LCD
Display Format20×2 characters
ControllerHD44780 compatible (or equivalent)
Interface4-bit / 8-bit parallel
Operating Voltage5V (typical), 3.3V optional variants
BacklightLED (A/K pins)
Character Matrix5×8 dots
Operating Temperature-20°C to +70°C
Module Size~116 × 37 mm (typical class)

Pin Description (Common HD44780 Layout)

VSS – Ground

VDD – Power supply

RS – Register select

RW – Read/Write control

E – Enable signal

DB0–DB7 – Data bus

A/K – Backlight LED power


Typical Applications

Arduino and microcontroller projects

Industrial control panels

Temperature / sensor displays

Power supply monitoring systems

Embedded user interfaces

Test and measurement equipment

DIY electronics projects


Why Choose LCM2002A?

The LCM2002A is one of the most widely used character LCD modules because it is:

Extremely easy to integrate

Supported by almost all microcontrollers

Low cost and widely available

Stable and reliable for long-term embedded use

It is ideal for projects that only require text and numeric display, without graphical complexity.


Important Note

This is a character LCD module only:

It does NOT display graphics or images

It requires correct contrast adjustment to show text

Most “no display but backlight on” issues are caused by contrast voltage (VO pin) not set properly or wiring issues


FAQ Section

Why is my LCD backlight on but no text appears?

This is usually due to incorrect contrast adjustment (VO pin) or wiring issues.

Is LCM2002A compatible with Arduino?

Yes, it is fully compatible using HD44780 library support.

Does it support I2C?

Not directly. I2C is only possible via an external adapter module.

What voltage does it use?

Typically 5V DC, with some variants supporting 3.3V.

Can it display graphics?

No, it only displays characters and symbols.

Product Comparison
Model:
Size:
Resolution:
Brightness:
Contrast Ratio:
Viewing Angle:
Lamp Type:
Signal Interface:
Panel Type:
LCM2002A 20x2 LCD Module Character LCD Display 5V HD44780 Compatible Screen

LCM2002A 20x2 LCD Module Character LCD Display 5V HD44780 Compatible Screen

LCM2002A

20×2
N/A (Character LCD)
12:1
35/40/50/50
YG-LED
CPU
LCM
LM-CG53-22NTK 10.4" LCD Module 640×480 Industrial HMI Display Screen

LM-CG53-22NTK 10.4" LCD Module 640×480 Industrial HMI Display Screen

LM-CG53-22NTK

10.4"
176×220
120 cd/m²
200:1
35/35/25/15
LED
RGB
LCM
LM-CD53-22NTK 10.4" CSTN LCD Module Industrial Display Screen

LM-CD53-22NTK 10.4" CSTN LCD Module Industrial Display Screen

LM-CD53-22NTK

10.4"
176×220
120 cd/m²
200:1
35/35/25/15
LED
RGB
LCM
LCM2002A is a LCM Display screen Product from .According to 's product specification sheet,LCM2002A display has a resolution of 20×2, Contrast Ratio is 12:1,Viewing Angle is 35/40/50/50,Lamp Type is YG-LED,Signal Interface is CPU,Brightness is N/A (Character LCD).Based on its characteristics, this model is recommended for application in Industrial and other products.The weight of LCM2002A after packaging is 1.000KG.We have made every effort to minimize weighing variances; however, we cannot guarantee absolute accuracy.
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99 In Stock | Lead Time 1-3 Days
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P************k
Nov 10, 2025
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My package arrived at the expected date (6 days after the purchase) and in good condition
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Very nice and sharp in the choice
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Good price for things hard to find!
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Product arrived earlier than expected. Price was also very reasonable.
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