Dear Digilent Support Staff,I'm a graduate student at the University of Arizona, and for my Master's Project, I'm designing an irrigation process control system.
I'm using a Digilent UC32 microcontroller to read whether or not a switch from a relay contact from a flow meter is either open or closed. I will be using a 5 V power supply, and have read that the digital input pins on the Digilent UC32 can handle 5V at logic levels. I have a few questions:
What is the maximum current that is safe for the UC32's digital pins to handle?
Do the digital pins have a built-in resistor that will limit the current draw, or do I need to use a voltage divider for this?
What is the minimum current that the UC32's digital pins can take accurate HIGH/LOW input readings at, from a 5V power source? Best Regards,