ACEIRMC 6pcs PCF8575 IO Expander Board Module I2C to 16IO IIC I2C I/O Extension Shield Module 16 bit SMBus I/O Ports for Arduino R3 (6pcs)
- I2C address: 0x20(default),can be modified by soldering A1 and A2 selection pads..
- Each pin configurable for input or output..
- Open-drain interrupt output pin for input change interrupt..
- New Open-Smart PCF8575 IO Expander Board Module I2C to 16IO for Arduino R3 and other MCU to control simple relay, buzzer, button, led..