Hi, I want to create an AI robot, where I will run a Python script. I can buy a raspberry pi, an external speaker and an external microphone. I want the robot to have a button, which will be covered with plastic or metal, when the button will be pressed, the robot should be activated and it should play the script, which is a personal assistant, which listen to commands and speaks to the user. I have looked at many tutorials, but I can't find anything. I want to ask if anybody knows how should I add a physical button in my robot. Thank you.