Hi, all.
The ADC could still get value even it is not connected to anything. Now, I want to know whether it is connected to something or not, and always set value to 0 if it is not connected. Is it possible by software? If I cannot, how to do it in hardware?
I have a throttle, I want to make sure microcontroller always connect to the throttle, since if it is not connected, it would generate random voltage, and it is a security problem.
