Table Of Contents

Controlling the LED with Digital I/O

Last Modified: November 26, 2019

This example illustrates how to use the Digital I/O to control the LED.

  1. Install the NI ELVIS III prototyping board onto the NI ELVIS III workstation.
  2. Connect a jumper wire between Bank A, Channel DIO 0 (A/DIO 0) and LED 0, as shown in the following diagram:

    Refer to Connecting Signals to Digital I/O for more details about connecting to the digital input/output.
  3. Press the application board power button on the workstation to power on the application board.

    To ensure safety, you must connect the wires before powering on the application board.

  4. Launch the Digital I/O Soft Front Panel (SFP).
  5. Configure the A/DIO7:0 to the Write mode.
  6. Click Run to start writing data from A/DIO 0 to LED 0.
  7. Change the output status of A/DIO 0 by changing Value or Line status. The LED is on when you configure A/DIO 0 to 1 and off when you configure A/DIO 0 to 0.

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