ARC 2023.12.06.00 (Pro & Runtime)

(Autonomous Robot Control Software)
Make robots with the easiest robot programming software. Experience user-friendly features that make any robot easy to program.

Change Release Notes

We are excited to introduce the latest update to Synthiam ARC, packed with new features, improvements, and bug fixes to enhance your robotic programming experience. Here are the highlights of this release:

Auto Position Configuration Enhancement

  • Updated Auto Position Config Start Message: We've improved the Auto Position configuration starting message when selecting a frame. The default selection message now recommends the STAND frame when the real-time checkbox is checked, providing a safe starting point.

  • Horizontal Scrollbar for Auto Position Frames: To enhance user visibility and accessibility, a horizontal scrollbar has been added to the list of Auto Position frames in an action. This ensures that all settings, including acceleration, velocity, speed, steps, etc., are easily accessible even when configured per frame.

New JavaScript Methods

  • Servo.getSpeed(): Introducing a new JavaScript method to retrieve the speed of a servo.
  • Servo.getAcceleration(): A new JavaScript method allows you to obtain a servo's acceleration.
  • Servo.getVelocity(): Another addition is the JavaScript method to get the velocity of a servo.

New Python Methods

  • Servo.getSpeed(): Similarly, in Python, you can now utilize this method to retrieve the speed of a servo.
  • Servo.getAcceleration(): Obtain the acceleration of a servo using this new Python method.
  • Servo.getVelocity(): Retrieve the velocity of a servo with this new Python method.

Robot Skill Template Updates

  • .NET 4.8 for Add robot skill Template: The Add robot skill template has been updated to use .NET 4.8 when creating the default project, ensuring compatibility and improved performance.

  • Release Build Option: The default Add robot skill template project now includes a Release build option. GUID and values have been populated, enhancing the project's configurability.

Camera Object Rotation Default Value

  • Default Value for Camera Object Rotation: We've added a default value for the camera object rotation variable, ensuring proper initialization of the global variable when the camera device robot skill is added.

Bug Fixes

  • JavaScript Variable Comparison Fix: Resolved a bug in JavaScript where comparing a GetVar("$globalVariable") as a bool caused unexpected behavior. This issue has been addressed to ensure accurate comparisons.

Thank you for choosing Synthiam ARC. We hope these updates enhance your robotic programming capabilities. As always, feel free to provide feedback or report any issues through our community forums. Happy coding!

ARC Downloads

ARC Free


  • Includes a free 3rd party plugin robot skill per project
  • GPT-Powered AI support
  • Free with trial limitations

For schools, personal use & organizations. This edition is updated every 6-12 months.



Only $8.99/mo

  • 2 or more PCs simultaneously
  • Includes unlimited skills
  • Premium support discount
  • And much more

Experience the latest features and bug fixes weekly. A Pro subscription is required to use this edition.



  • Load and run any ARC project
  • Operates in read-only mode
  • Unlimited robot skills
  • Early access fixes & features

Have you finished programming your robot? Use this to run existing ARC projects for free*.

  • Minimum requirements are Windows 10 or higher with 2+gb ram and 500+MB free space.
  • Recommended requirements are Windows 10 or higher with 8+gb ram and 1000+MB free space.
  • ARC Free known-issues can be viewed by clicking here.
  • Get more information about each ARC edition by clicking here.
  • See what's new in the latest versions with Release notes.

Compare Editions

Feature ARC
  Get ARC for Free View Plans
Usage Personal
Premium support $14.99/ticket $9.99/ticket
Feature requests Yes
Early access to new features & fixes Yes
Simultaneous microcontroller connections* 1 255
Robot skills* 20 Unlimited
Skill Store plugins* 1 Unlimited
Cognitive services usage** 10/day 6,000/day
Auto-positions gait actions* 40 Unlimited
Speech recongition phrases* 10 Unlimited
Camera devices* 1 Unlimited
Vision resolution max 320x240 Unlimited
Interface builder* 2 Unlimited
Cloud project size 128 MB
Cloud project revision history Yes
Create Exosphere requests 50/month
Exosphere API access Contact Us
Volume license discounts Contact Us
  Get ARC for Free View Plans
* Per robot project
** 1,000 per cognitive type (vision recognition, speech recognition, face detection, sentiment, text recognition, emotion detection, azure text to speech)


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wow thanks for the update