I2C LCD Adapter Board (PCF8574) – 16×2 / 20×4

5V power supply.
Serial I2C control of LCD display using PCF8574.
Backlight can be enabled or disabled via a jumper on the board.
Contrast control via a potentiometer.
Can have 8 modules on a single I2C bus (change address via solder jumpers)address, allowing.

SKU: AA134

60,00 EGP

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Description

This is a RoHS compliant I2C Serial LCD Daughter board that can be connected to a standard 16×2 or 20×4 Character Display Module that supports 4-bit mode. All Character Modules sold on our site support 4-bit mode, and nearly all commercially available 16×2 and 20×4 line character modules support it too.

This board has a PCF8574 I2C chip that converts I2C serial data to parallel data for the LCD display. There are many examples on the internet for using this board with Arduino. Do a search for “Arduino LCD PCF8574“. The I2C address is 0x3F by default, but this can be changed via 3 solder jumpers provided on the board. This allows up to 3 LCD displays to be controlled via a single I2C bus (giving each one it’s own address)

Specifications and Features:

5V power supply.
Serial I2C control of LCD display using PCF8574.
Backlight can be enabled or disabled via a jumper on the board.
Contrast control via a potentiometer.
Can have 8 modules on a single I2C bus (change address via solder jumpers)address, allowing.
Size ：41.6 x 19.2 mm.

Package Includes:

1 x IIC/I2C Serial Interface Adapter Module

LiquidCrystal I2C

🔌

Pin Connections

2 Tables

Pin Connections Table 1

Arduino Pin	I2C Module
5V	VCC
GND	GND
SDA	A4
SCL	A5

Pin Connections Table 4

ESP32	I2C Module
5V	VCC
GND	GND
SDA	GPIO 21
SCL	GPIO 22

📟

LiquidCrystal I2C

1 Example • C/C++

Wrap Dark Mode

LiquidCrystal I2C

📄 File: liquidcrystal_i2c.ino

681 characters

1// Ekostra.com

2// Compatible with the Arduino IDE 1.0

3// Library version: 1.1

5/*

6 I2C LCD Pin Connections:

7 -----------------------

8 Arduino UNO / Nano:

9 SDA -> A4

10 SCL -> A5

11 VCC -> 5V

12 GND -> GND

14 Arduino Mega 2560:

15 SDA -> Pin 20

16 SCL -> Pin 21

18 ESP32:

19 SDA -> GPIO 21

20 SCL -> GPIO 22

21*/

23#include <Wire.h>

24#include <LiquidCrystal_I2C.h>

26// LCD I2C address 0x27, 16 columns, 2 rows

27LiquidCrystal_I2C lcd(0x27, 16, 2);

29void setup()

30{

31 lcd.init(); // Initialize LCD

32 lcd.backlight(); // Turn on backlight

34 lcd.setCursor(3, 0);

35 lcd.print("Hello, world!");

37 lcd.setCursor(2, 1);

38 lcd.print("Ekostra.com!");

39}

41void loop()

42{

43}

Required Libraries:

LiquidCrystal I2C Download

Specification

General

WeightWeight	4,0000 g
Dimensions	42 × 20 cm
Type	I2C Serial LCD Interface Adapter
Compatible LCD Size	16×2 / 20×4 Character LCD
LCD Mode	4-bit Mode
Controller IC	PCF8574
Communication Interface	I2C
Operating Voltage	5V
Default I2C Address	0x3F
Address Selection	Via 3 Solder Jumpers
Maximum Devices on I2C Bus	Up to 8 Modules
Backlight Control	Jumper Enabled / Disabled
Contrast Adjustment	On-board Potentiometer
RoHS Compliance	Yes
Application	Arduino and Microcontroller Projects
الأبعاد	41.6×19.2×8 (mm) مم (الطول: 4.16 سم، العرض: 1.92 سم، الارتفاع: 0.8 سم)
الوزن	5 جرام (0.005 كجم)
Package Includes	1 x I2C Serial Interface Adapter Module