Green 20x4 Character LCD with Serial IIC/I2C for Arduino

Name: Green 20x4 Character LCD with Serial IIC/I2C for Arduino
Brand: satkit
SKU: A020306-2004iic
Price: 12.30 EUR
Availability: InStock

Brand: satkit

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12.30€

VAT included (Ex VAT: 10.00 €)

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Quantity	Price	Save
2+	11.81 €	-4%
10+	10.86 €	-12%
20+	10.09 €	-18%

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The Green 20x4 Character LCD with Serial IIC/I2C for Arduino is an FSTN LCD display designed to show up to 4 lines with 20 characters each, providing clear and efficient display for your electronic projects. With a white backlight on a green background, this display ensures excellent visibility even in low-light conditions.

Thanks to its I2C communication interface, this module simplifies connection with Arduino boards, using only four pins: GND, VCC, SDA and SCL, which reduces wiring and makes integration into your projects easier.

Main features:

Interface: I2C for a simple and quick connection.
I2C address: 0x27, compatible with most Arduino libraries.
Backlight: Green with included white lighting, with no need for additional components.
Power supply: 5V for compatibility with standard Arduino boards.
Size: 60mm x 99mm, compact and easy to integrate.
Contrast adjustment: Via built-in potentiometer for optimal viewing.
Backlight adjustment: Controllable via jumper to customise the lighting.

Typical uses:

This LCD is ideal for Arduino projects that need to display information such as sensor data, menus, system status or any text that needs to be shown clearly and legibly. Its low power consumption and easy installation make it perfect for prototypes, embedded systems and portable devices.

Compatibility:

Compatible with most Arduino boards that support I2C communication, this module is a practical solution for developers and hobbyists looking for a reliable and easy-to-use display.

FSTN LCD display with 4 lines and 20 characters per line
I2C interface with 0x27 address for easy connection
Green backlight with included white light
5V power supply compatible with Arduino
Compact size of 60mm x 99mm
Contrast adjustment via potentiometer
Backlight control via jumper

Customer Questions & Answers

What advantages does using the I2C interface on this LCD display offer compared with a standard parallel connection?

The I2C interface significantly reduces the number of pins required for the connection (only SDA and SCL, plus VCC and GND), freeing up pins on microcontrollers such as Arduino. Compared with parallel connections, which require at least 6-7 data and control pins, I2C improves scalability and cable management, although refresh speed may be slightly lower due to the serial protocol.

What are the exact dimensions and weight of the LCD module, and what is included in the box?

The LCD module measures 99 mm wide by 60 mm high; the typical weight is around 75 g. The standard package includes only the assembled module (display and I2C controller board), with no cables or other accessories.

Which microcontrollers and Arduino versions is this display fully compatible with when using the I2C interface and address 0x27?

The display is compatible with most Arduino boards (Uno, Mega, Nano, Leonardo) and microcontrollers with a standard I2C bus (such as ESP8266, ESP32, STM32, Raspberry Pi). You must use a suitable library (e.g. LiquidCrystal_I2C). Please make sure the I2C address 0x27 is not already in use by another device on the bus.

How do I connect the 20x4 I2C LCD to Arduino?

It connects using four pins: GND, VCC, SDA and SCL, using the I2C interface to simplify wiring.

What voltage does this LCD need to operate?

This LCD operates with a 5V supply voltage, compatible with most Arduino boards.

Does the LCD include backlighting?

Yes, it includes white backlighting on a green background without the need for external components.

Can the contrast and backlight be adjusted?

Yes, the contrast is adjusted with a potentiometer and the backlight is controlled via a jumper.