Set Digital

How to add the Set Digital robot skill

  1. Load the most recent release of ARC (Get ARC).
  2. Press the Project tab from the top menu bar in ARC.
  3. Press Add Robot Skill from the button ribbon bar in ARC.
  4. Choose the Digital category tab.
  5. Press the Set Digital icon to add the robot skill to your project.

Don't have a robot yet?

Follow the Getting Started Guide to build a robot and use the Set Digital robot skill.

How to use the Set Digital robot skill

This skill sets the digital status of a port. It generates a TTL voltage signal low (0V) or a TTL voltage signal high (+3.3V or +5V, depending on the I/O Controller).

Main Window

1. ON/OFF Button
This button turns a digital port ON (green) or OFF (red).


1. Name Field
Enter a name for your Set Digital skill.

2. Board Drop-down
Select your board number.

3. Port Drop-down
Select your Digital port number.

How to Use Set Digital

1) Add the Set Digital skill to your ARC project (Project -> Add Skill -> Digital -> Set Digital).

2) In the skill settings select the Digital port that you have your device connected to.

3) In the Main Window press the ON/OFF Button to toggle the digital port.


An I/O Controller with digital output ports.

*Note: You can't power anything that draws much current from the digital pins, they are only designed to generate signals. (i.e. do not directly connect motors, relays, etc to digital port). Use an H-Bridge for motors and a transistor to control relays.


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