Schematic of Digital I/O Pins on cnReach

cnReach radios can be ordered with a digital/analog I/O port that provides the ability to connect to a wide variety of external sensors and actuators.

  • Sense switch closing/openings with Digital Inputs
  • Drive motor contacts or actuators with Digital Outputs
  • Count low-frequency or high-frequency occurrences with Digital Inputs
  • Pull-up resistor used to keep DO either normally ‘low’ or normally ‘high’
  • Digital In can sink maximum 2A

The schematic below is representative and shows how the interface works.