PCF8575 IO Expander Module with 16 I/O Pins

27.99 

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🏷️ Condition: New

🚚 Ships from: HK Warehouse – Hong Kong (China)

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The PCF8575 IO Expander Module is a compact 4×2.1cm board featuring 16 quasi-bidirectional I/O pins accessible via I2C with a default address of 0x20, adjustable through soldering. Operating between 2.5V and 5.5V with a maximum current of 100mA, it includes a built-in 3.3V level converter. Each pin can be individually configured as input or output, supporting open-drain interrupts for change detection. Designed for seamless integration with microcontrollers like Arduino UNO R3, this module enables efficient control of relays, buzzers, buttons, and LEDs in various electronics projects, offering reliable performance in a minimal footprint.

In stock

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