GPIO Expander
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- Boards, Modules and Accessories, Sensors And Modules
PCF8574 I2C Expansion Board Adapter Module
- Adds 8 bidirectional digital I/O pins via I2C to microcontrollers.
- Uses PCF8574 I2C I/O expander chip for reliable GPIO expansion.
- Compatible with Arduino, ESP32, ESP8266, and Raspberry Pi.
- Configurable I2C addresses allow multiple modules on one bus.
- Wide operating voltage: 2.5V to 6V for 3.3V and 5V systems.
- Ideal for LCDs, keypads, sensor arrays, relay control, and robotics.
SKU: n/a
