Youmile 2x PCF8575 IO Expander Module I2C to 16-Bit I/O Extension for Arduino

Product Description

Expand your I/O capabilities with the Youmile PCF8575 IO Expander Board Module. This module allows you to gain up to 16 I/O pins using only two pins for control via the I2C interface. The PCF8575 features 16-bits of quasi-bidirectional input/output pins, making it ideal for projects requiring more digital control.

The module includes an onboard 3.3V level converter circuit. If the VCC-VDD pad is not soldered, the PCF8575 operates at 3.3V. If soldered, its voltage level will match VCC.

Key Features

• Brand: Youmile
• Chip: PCF8575
• Interface: I2C
• Functionality: 16-Bit I/O Expansion
• Compatibility: Works with Arduino UNO R3 and other MCUs
• Input/Output: 16 individually addressable quasi-bidirectional pins
• Configurability: Each pin can be configured for input or output
• Interrupt: Open-drain interrupt output pin for input change detection
• Level Converter: Onboard 3.3V level conversion circuit

Specifications

• Working Voltage: 2.5 - 5.5VDC
• Working Current: 100mA (MAX)
• I2C Address: 0x20 (default), adjustable by soldering A1 and A2 selection pads
• Module Size: 4 x 2.1cm / 1.57 x 0.83 inches

Package Includes

• 2 x PCF8575 IO Expander Module
• 1 x 40-pin Male and Female DuPont Cable

This module is perfect for controlling simple relays, buzzers, buttons, and LEDs in your Arduino projects.