Specification: Origin: Mainland China Type: Module Condition: New Function Introduction: Features: Typical applications: Main resources: information included: I/O expansion module based on I2C interface, using 2 I/O to expand 8 I/O (more than 8 PCF8574 can be used at the same time, expanding to 64 I/O) 1. support for two types of interfaces to access the target board: row of pins or row of seats 2. Support I2C bus cascade (through the row of pins, row of sockets docking method, you can use more than one I2C module at the same time) I/O expansion for MCUs with scarce I/O resources PCF8574, I2C interface, 8-bit parallel port Size: 48x17x11mm/1.89x0.67x0.43inch Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x IO Expansion Board 1. High Capacity IO Expansion: The PCF8574 IO expansion board allows you to expand 2 IO pins of your microcontroller into 8 IO ports through an I2C bus connection. 2. Flexible Interface: This I/O expander uses a standard I2C interface for communication with the main controller, simplifying hardware connections and making it easy to integrate into existing systems. 3. Wide Compatibility: The I2C-Bus evaluation development module is widely compatible with various types of main controllers and development platforms, such as Arduino, Raspberry Pi, and more. 4. Low Power Consumption Design: This converter module is designed with low power consumption in mind, making it suitable for IoT devices with strict power requirements. 5. Reliable and Stable Performance: With its stable hardware design and excellent anti-interference capabilities, this PCF8574 adapter plate ensures reliable operation in various environmental conditions.