This IC allows the user to expand up to 16 I/O using only two I/O for control! The PCF8575 is controlled through an I2C interface and features 16-bits of quasi-bidirectional input/output pins.
Features
-16 individually addressable pins
-Each pin configurable for input or output
-Interrupt output pin
-1" x 1"
- DC 2.5-5.5V
Pull up resistors on the PCF8575 pcb are 10kohm (between VCC - SCL and VCC - SDA). I2CScanner prints "I2C device found at address 0x20" everytime.
WARNING
