halow all, greetings.
i need help, I'm building a controller using PCF8575 IC, can it be made to removable ?.
is there a simple tutorial that can be understood for beginners 
thank you
best regards
can it be made to removable ?
Yes. Power everything off and then attach it or remove it.
Did you mean "hot swapable" ? That is do you want to plug and unplug it while the power is on? If so yo need a chip and special connector to do this.