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3PC PCF8574 I2C LCD Adapter Module 5V IIC Serial Interface Board for LCD1602 LCD2004 Arduino Robot Parts
Limited time offer, ends 07/30 By TechCore Supply
- Converts parallel LCD to I2C (SDA/SCL); reduces wiring from 710 pins to 4 pins (VCC/GND/SDA/SCL).
- Wide LCD Compatibility
- Fits LCD1602 (16×2) and LCD2004 (20×4) character displays; ideal for Arduino, ESP32, Raspberry Pi.
- PCF8574 Chip & 5V Operation
- Built-in PCF8574 I/O expander; works at 5V (2.5V6V wide voltage range).
- Adjustable Contrast & Backlight
- Blue potentiometer for contrast adjustment; jumper to enable/disable LCD backlight.
- Configurable I2C Address
- Default address 0x27; change via A0/A1/A2 pads (0x200x27); support up to 8 modules on one bus.
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Overview
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3pc PCF8574 I2C LCD Adapter Module is a compact serial interface board designed to simplify control of LCD1602 (16×2) and LCD2004 (20×4) character displays. By using the PCF8574 I/O expander chip, it converts a parallel LCD connection into a 2-wire I2C (SDA/SCL) interface, drastically reducing wiring complexity and saving valuable GPIO pins on your microcontroller.
Operating at 5V (compatible with 2.5V6V), this module features an adjustable contrast potentiometer and a backlight jumper for easy display optimization. The default I2C address is 0x27, which can be modified via A0/A1/A2 solder pads, allowing multiple modules to be cascaded on a single I2C bus.
Perfect for Arduino, ESP32, ESP8266, Raspberry Pi, and robotics projects, this adapter turns any standard LCD into an easy-to-use I2C display for data logging, sensor readouts, and embedded system interfaces.
Specifications
- Chip: PCF8574 (I2C I/O Expander)
- Compatible LCD: LCD1602 (16×2), LCD2004 (20×4)
- Interface: I2C (SDA/SCL), 4-pin (VCC/GND/SDA/SCL)
- Voltage: 5V (2.5V6V)
- Default I2C Address: 0x27 (configurable 0x200x27)
- Features: Contrast Adjustment, Backlight Control, Address Configurable
- Application: Arduino, Robotics, DIY Projects
Brand: AJMRTC
- Model: PCF8574 I2C LCD Adapter
- Compatible LCD: LCD1602, LCD2004
- Interface: I2C (IIC) Serial
- Chipset: PCF8574
- Voltage: 5V
- Key Features: Adjustable Contrast, Backlight Control, Address Configurable
- Application: Arduino, Robot Parts, DIY Electronics
- Pin Usage: 4 Pins (VCC, GND, SDA, SCL)
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by TechCore Supply Return Policy
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