now, I need 6 inputs for the limit switches (X++,X--,Y++,Y--,Z++,Z--), but there is only 5 inputs on my breakout board, what should I do?
To buy a second breakout board and use the second parallel port?
or may I use all these 6 limit switches to setup on the same pin, say, pin 12? It seems OK since all limit switch will trigger the E-stop. Am I correct?
thanks