This Module is a simple breakout board for this easy to use expander IC. This PCF8575 module allows the user to expand up to 16 I/O using only two I/O for control.
PCF8575 IO Expander Module Specifications:
- Working voltage: 2.5 - 5.5VDC
- Working current: 100mA(MAX)
- I2C address: 0x20(default),can be modified by soldering A1 and A2 selection pads.
- 16 individually addressable pins.
- Each pin configurable for input or output.
- Open-drain interrupt output pin for input change interrupt.
- Great for Arduino UNO R3 and other MCU to control simple relay, buzzer, button, led.