LCD display 4x20 characters blue + I2C LCM1602 converter

Index: LCD-02640 EAN: 5904422331061

Popular 2 x 40 blue backlit display with I2C bus converter soldered in. Thanks to this circuit, two data lines and a 5V power supply and ground are enough to connect the display.

LCD display 4x20 characters blue + I2C LCM1602 converter
€7.32 tax excl.
Delivery 99 pcs scheduled for 2024-05-23
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Manufacturer: OEM

Product description: 4x20 character blue LCD display + I2C converter LCM1602

Popular alphanumeric LCD display, powered by 5V. It can display 80 characters in four rows of twenty columns. An I2C converter is soldered in, so only two lines - SDA and SCL - are needed to operate the display. Through the bus, from Arduino level, you can control both text display and backlight, turning it on or off at any time. On the board is also potentiometer for contrast adjustment.

Wyświetlacz LCD 4x20 - niebieski

Product compatible with Arduino

Check how to connect this device to Arduino.


The chip has four pins and a jumper, which when pulled out turns off the backlight.

Wyświetlacz LCD 4x20 z konwerterem - niebieski

No. Name Description
1 GND Ground.
2 VCC . +5 V power supply.
3 SDA I2C bus data line.
4 SCL I2C bus clock line.

Parameters of 4x20 LCD display

  • LCD display 4 x 20 characters
  • Character color: white
  • Backlight: blue
  • Module size: 98 x 60 mm
  • Hole spacing: 93 x 55 mm
  • I2C bus converter
  • No pull-up resistors for I2C bus lines (switched in Arduino)
  • Converter based on PCF8574 chip(documentation)
  • Soldered potentiometer for contrast adjustment
  • Backlighting control possible via I2C bus

Screen - type alphanumeric
Screen - diagonal 2.9''
Screen - interface I2C
Screen - touch no
Screen - resolution 4x20 znaków
Test 3
Package width 9 cm
Package height 1.5 cm
Package depth 15 cm
Package weight 0.071 kg



Question: Will this display work with the raspberry pi?
Answer: The display should work with RPI. Configuration examples can be found here:

Product reviews

LCD display 4x20 characters blue + I2C LCM1602 converter


Average grade


Customers opinion
The following opinions are collected
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and come from the post-purchase process.
Mariusz 11.12.2023 Confirmed purchase Translated review
There is nothing to describe. Decent display.
Michał 18.10.2023 Confirmed purchase Translated review
Goods consistent with the description. When you turn it on for the first time, you can't see anything, but you need to turn the potentiometer on the back of the panel to make the letters visible. Regards
Lutz 18.04.2023 Confirmed purchase Translated review
Use it with the Arduino. Simple program integration. Product for the price just great!
Michał 16.03.2023 Confirmed purchase Translated review
Everything as described.
Rüdiger 02.03.2023 Confirmed purchase Translated review
Everything fits.
Witold 22.02.2023 Confirmed purchase Translated review
great recommend!!!!!!!!!!
Igor 15.11.2022 Confirmed purchase Translated review
Display ok, if it only shows 1 letter you need to find another display library to make it work.
Krystian 12.09.2022 Confirmed purchase Translated review
Hassle-free connection and control
Agnieszka T. 15.12.2021 Confirmed purchase Translated review
Piotr B. 12.11.2021 Confirmed purchase Translated review
It works :)
Łukasz Z. 27.09.2021 Confirmed purchase Translated review
It works
Rafał 20.03.2024 Confirmed purchase
Damian 14.02.2024 Confirmed purchase
Kryspin 22.12.2023 Confirmed purchase
Clemens 27.11.2023 Confirmed purchase
Łukasz 29.08.2023 Confirmed purchase
Abdelsalam 10.04.2023 Confirmed purchase
Jakub 08.03.2023 Confirmed purchase
Sergiusz 24.02.2023 Confirmed purchase
Aliaksandr 15.09.2022 Confirmed purchase
Antoni 13.09.2022 Confirmed purchase

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