Jrifedptry PCA9555A Expansion Module IIC/I2C GPIO Expansion Board Module 16 Digital Input & Output

4. Programmable Features: The expansion module is highly programmable, allowing you to set the working mode, polarity, and current drive capability of input/output channels through configuration registers. 1. Multi-Channel Expansion: The module offers multiple configurable input/output channels, allowing you to expand a single I/O pin into many. 3. Low Power Consumption: Designed with low power consumption in mind, this muti-channel expansion board minimizes power usage during operation, making it ideal for applications requiring long-term use and extended battery life. 2. Digital Input/Output: This expansion board supports both digital input and output, enabling you to input external signals into a microcontroller or output signals from the microcontroller to external devices. 5. High Reliability and Stability: Built with premium components and reliable circuit design, this expansion module ensures high reliability and stability for your projects.