Archive for September, 2011

Updated VEX Gateway Challenge (v1.02) available!

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2011-2012 VEX Gateway Challenge Level Pack

We have updated the VEX Gateway Challenge Level Pack that includes just minor changes. It also fixes the motor polarity to match the real version of the Squarebot.

Where do I download it?

Just go to and find the “2011-2012 VEX Gateway Challenge Level Pack”.

How do I install it?

Run the .exe file and it will walk you through the installation process. You do not need to uninstall the previous version if you already installed a previous version of this Level Pack.

Written by Vu Nguyen

September 28th, 2011 at 1:49 pm

Posted in Cortex,VEX

ROBOTC 3.03 is now available!

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Hi all,

We’ve just released ROBOTC 3.03. Head on over to the download pages to download the latest version!

3.02 to 3.03 Change log:

  • Fixed issue with nMotorEncoderTarget when issuing a positive target with a negative speed.
  • Removed windows that would cause Virtual Worlds to crash when opening.
  • Fixed problem with large files not compiling to robot controllers. The Maximum size of user program was incorrectly given as 16K. Changed to 128K. Also added error messages to prevent “silent” failure.
  • Fixed “File – Print Preview” and “Print” commands to properly print source code.
  • ROBOTC will no longer crash if Fantom is not available.
  • Fixed issue with ROBOTC Auto-Updater. ROBOTC will now properly notify you when a new version is available.
  • No longer validate perpetual license and check for updates on every startup. This is now a periodic check.
  • Corrected a bug with an incorrect cast that was causing crash in compiler code optimization.
  • Fixed issue with VEX remote screen display where buttons were not emulating the correct value when pressed.


Written by Vu Nguyen

September 26th, 2011 at 3:25 pm

Posted in Cortex,FTC,NXT,Releases,VEX

Introduction to programming using encoders

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Encoders provide a great way for you to control where your robot goes.  The video that is posted below is for someone who has never used encoders.

In this video we will talk about what encoders are used for and open a sample program that allows a user to see how the code works.  New programmers can try this program out using the Robot Virtual World software found at: 

Written by Robin Shoop

September 20th, 2011 at 5:22 pm

Posted in General News

FTC Bowled Over and VEX Gateway Challenge Virtual Worlds

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The ROBOTC team modified both the FTC Bowled Over and VEX Gateway Challenge Virtual Worlds to include four different starting positions and improved physics.  Each robot challenge has four different starting positions. The new options in the virtual worlds are designed to allow the team’s programmers to begin their path planning for the autonomous portion of the challenge while the rest of the team completes the robot.  Teams will be able to begin to build robot behaviors like straight for a number of encoder counts,  turning a specific angle, linetracking, forward until sonar or touch sensor before their actual robot is complete.

You can see a simple example of the FTC Bowled Over Robot Virtual World here:

YouTube Direct Link 

and the VEX Gateway Challenge here:

YouTube Direct Link 

The Robot Virtual World simulator only works in ROBOTC 3.0 or later. Learn more about Robot Virtual Worlds here:

Written by Robin Shoop

September 17th, 2011 at 2:59 pm

Posted in General News

Grumpy: Robot with some personality

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[Thanks to jovel from the forums for submitting this!]

This is my power functions robot named Grumpy.
Like other robots he has some basic functions like:

  • Driving back-/forward
  • Turning
  • Lower and raise his arms
  • Open and close his claw to pick things up

But that wasn’t enough for me. I wanted him to have some personality. To do that I added some head movements. He can shake his head left/right and move his neck back- and forward. While driving he always looks in the direction he’s going. He can also move his eyebrows up and down.

Written by Vu Nguyen

September 14th, 2011 at 10:48 am

Posted in General News