Specific situation is like this, because the pin is limited, and I don't know much about the hardware, I'm a 52 engineers on board before use, a board control shaft movement, control commands are issued by the computer, the other a board connected to the equipment on the touch screen, lights and some main control motor, the two have no intersection, are now required to do a one click button, do on a touch screen, touch screen control multi-axis motion to a fixed location, so I want to ask can use touch screen control board even the mouth of a P1 or P2 to control multi-axis board, and then in multi-axis board to do a connection of level was detected in the action program, so I want to ask ever do a friend, the mouth of the microcontroller on the trigger what you need to set up?

CodePudding user response:

Touch screen control program can directly control the lamp and some motor, if the lack of port extensible port, you don't know the best move, me will solve,
Look from the description does not understand egg chicken, computer send orders can be delivered to the same piece of cheat chicken egg processing,

CodePudding user response:

Ok, but the input should be set to input or weak pull-up