Other Parts Discussed in Thread: PCF8575,
Currently I am using PCF8575 IC of IO expander. With this IC , I am facing issue of all pins are high at power on or reset condition. But I require all pins are low at power on or reset condition. Should I use PCA9555 IC for resolve this issue? From datasheet of PCA9555 IC, I know that all pins behave as a input. (In Output we get input pin low voltage or high voltage?)
