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ROBOTC for VEX Robotics 4.53 Preview Available Today!

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ROBOTC 4-53 VEX

ROBOTC for VEX Robotics 4.53 preview is out and it sports a myriad of awesome new features that we’re very excited about! A full list of changes and improvements appear below, but here are the highlights:

Create Graphs from your Datalogs

Datalog Graph

Want to know what running your robot into a wall looks like to your accelerometer? Curious about how ambient light intensity varies throughout the day? Datalogging now supports (live) plotting of incoming data gathered on the robot brain. Science experiments involving sensor and motor data can be displayed. You can easily find out by gathering the data and having ROBOTC plot the data for you, as it comes in.

Datalog Graphical

Datalogging is no longer restricted to just Full ROBOTC, we’ve added easy to use blocks that allow you to access the same functionality in a simple manner.

Additionally, logged data can even be exported for further analysis in a spreadsheet application of your choice.

 

ROBOTC Graphical Variable Support

Variable Support

You can now use variables in ROBOTC Graphical, as well as perform various operations on them. You can add, subtract, divide, multiple, whatever your program requires. You can use variables in loops, motor blocks, you name it!

 

ROBOTC Graphical Break and Continue

Continue Break

We’ve added two new program flow blocks, break and continue. This was a much requested feature from our more advanced users of ROBOTC Graphical. You can now create more complex programs without creating work-arounds or having to switch to ROBOTC Full.

 

Beta Channel Access

Use Beta Builds

Want to have a front row seat when it comes to upcoming features in ROBOTC? Subscribe to the beta channel through ROBOTC’s preference menu and you will be notified when a preview build (such as this one), is released. Try out new and exciting features before we release them to the general public and provide us with feedback. Help make ROBOTC better!

 

Other changes and bug fixes

New features – VEX

  • You can control an LED on the VEX EDR from Graphical and Natural Language using the new setLED block or command.

Changes and Improvements – General

  • The default colors in the Assembly window (F9) have new defaults for increased readability.
  • Function tooltips have been revised and corrected where applicable.
  • License error messages have been improved. A short explanation of the error codes is now provided.
  • #info has been added to the list of support #pragma statements, such as #error and #warn
  • The start and stop buttons on the datalogging control have been merged into a single button.
  • Deleting a file from the File Utility was not possible, this has been fixed.
  • We’ve made some visual changes to ROBOTC Graphical including new colours for enhanced readability.
  • Internal improvements to the datalogging system have been made that resolve possible data corruption and inability to disable polling for a specific data series.
  • Saving a New User Model in the Motors and Sensor Setup has been fixed.
  • Various float conversion related issues have been fixed.
  • NaN (Not a Number) detection has been fixed.
  • Sscanf with more than 7 arguments could crash the VM, this has been fixed.
  • Overloaded deprecated function no longer cause warnings.
  • A discrepancy between the compiler and VM regarding the maximum number of tasks has been fixed.
  • An issue with ROBOTC crashing due to a recursive macro has been addressed.
  • The RVW package manager now shows the correct informational icon.
  • Opening the RVW package manager no longer causes an exception under certain circumstances.
  • An issue with the debugStream window background refresh causing a hang when communications with the robot was lost, has been remedied.
  • The Program Debug window no longer crops the status line.
  • You can now use displayInverseString() in combination with a char *.
  • drawInvertRect and drawInvertEllipse were not deprecated correctly, this has been fixed.

Changes and Improvements – VEX

  • The VexIQ LCD screen has been added to the #debuggerWindows #pragma.
  • A bug in the macro parser prevented the use of the VEX EDR platform when a PLTW license was active. This has been fixed.
  • An issue with debugging and using sscanf on the VEX IQ has been addressed.
  • VEX IQ getGyroRate and getGyroRateFloat return incorrect values, this has been fixed.
  • Starting a new task on the VEX EDR no longer clears the screen.
  • Using drawTextCenteredInUserScreenArea function will no longer throw an exception on the VEX IQ.
  • An issue with the start of flash file system not showing correctly in communication debug message has been fixed.
  • The VEX EDR competition template now sets the platform correctly.

Download ROBOTC for VEX Robotics 4.53 preview here!

And let us know what you think of the new updates. Happy Programming!

Written by Xander Soldaat

March 29th, 2016 at 6:20 am

ROBOTC for MINDSTORMS 4.53 Preview Available Now!

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ROBOTC 4-53
 

ROBOTC for MINDSTORMS 4.53 preview is out and it sports a myriad of awesome new features that we’re very excited about! A full list of changes and improvements appear below, but here are the highlights:

 

Create Graphs from your Datalogs

Datalog Graph

Want to know what running your robot into a wall looks like to your accelerometer? Curious about how ambient light intensity varies throughout the day? Datalogging now supports (live) plotting of incoming data gathered on the robot brain. Science experiments involving sensor and motor data can be displayed. You can easily find out by gathering the data and having ROBOTC plot the data for you, as it comes in.

Datalog Graphical

Datalogging is no longer restricted to just Full ROBOTC, we’ve added easy to use blocks that allow you to access the same functionality in a simple manner.

Additionally, logged data can even be exported for further analysis in a spreadsheet application of your choice.

 

ROBOTC Graphical Variable Support

Variable Support

You can now use variables in ROBOTC Graphical, as well as perform various operations on them. You can add, subtract, divide, multiple, whatever your program requires. You can use variables in loops, motor blocks, you name it!

 

ROBOTC Graphical Break and Continue

Continue Break

We’ve added two new program flow blocks, break and continue. This was a much requested feature from our more advanced users of ROBOTC Graphical. You can now create more complex programs without creating work-arounds or having to switch to ROBOTC Full.

 

Beta Channel Access

Use Beta Builds

Want to have a front row seat when it comes to upcoming features in ROBOTC? Subscribe to the beta channel through ROBOTC’s preference menu and you will be notified when a preview build (such as this one), is released. Try out new and exciting features before we release them to the general public and provide us with feedback. Help make ROBOTC better!

 

Other changes and bug fixes

New features – MINDSTORMS

 

  • Battery monitoring on the EV3 through the nImmediateBatteryLevel and nAvgBatteryLevel intrinsic variables has been added

Changes and Improvements – General

 

  • The default colors in the Assembly window (F9) have new defaults for increased readability.
  • Function tooltips have been revised and corrected where applicable.
  • License error messages have been improved. A short explanation of the error codes is now provided.
  • #info has been added to the list of support #pragma statements, such as #error and #warn
  • The start and stop buttons on the datalogging control have been merged into a single button.
  • Deleting a file from the File Utility was not possible, this has been fixed.
  • We’ve made some visual changes to ROBOTC Graphical including new colours for enhanced readability.
  • Internal improvements to the datalogging system have been made that resolve possible data corruption and inability to disable polling for a specific data series.
  • Saving a New User Model in the Motors and Sensor Setup has been fixed.
  • Various float conversion related issues have been fixed.
  • NaN (Not a Number) detection has been fixed.
  • Sscanf with more than 7 arguments could crash the VM, this has been fixed.
  • Overloaded deprecated function no longer cause warnings.
  • A discrepancy between the compiler and VM regarding the maximum number of tasks has been fixed.
  • An issue with ROBOTC crashing due to a recursive macro has been addressed.
  • The RVW package manager now shows the correct informational icon.
  • Opening the RVW package manager no longer causes an exception under certain circumstances.
  • An issue with the debugStream window background refresh causing a hang when communications with the robot was lost, has been remedied.
  • The Program Debug window no longer crops the status line.
  • You can now use displayInverseString() in combination with a char *.
  • drawInvertRect and drawInvertEllipse were not deprecated correctly, this has been fixed.

Changes and Improvements – MINDSTORMS

 

  • The original LEGO firmware file operations have been removed, their functionality has been superseded by ROBOTC file operations.
  • EV3 specific datalogging functions have been marked as obsolete. Users should use the new datalogging functions.
  • Restrictions on the file downloading locations on the EV3 have been relaxed a little.
  • Opening the File Utility on the EV3 will create the rc and rc-data folders, if they don’t already exist.
  • Playing a sound file from inside ROBOTC’s on-brick program folder is easier. It will check if a file with that name exists in the rc folder, before checking the built-in sounds folder.
  • A memory leak in the EV3 connection handling has been fixed; disconnecting an EV3 while the debugger was running would eventually exhaust all program memory.
  • Running a motor with a specified encoder count of 0 on the EV3 would produce unpredictable results, this has been fixed.
  • An issue with reading data from the NXT Sonar sensor in the IDE has been fixed.

Download ROBOTC 4.53 preview here!

And let us know what you think of the new updates. Happy Programming!

Written by Xander Soldaat

March 29th, 2016 at 6:15 am

Mexico’s ROBOTC and Robot Virtual Worlds Software Programming Contest

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reeduca-logoIn early 2015, our partner, Reeduca, started the ROBOTC and Robot Virtual Worlds (RVW) Software Programming Contest for both public and private school students in Mexico. Reeduca started the contest as a way to introduce students, teachers, parents, and educators to computer science and its benefits.

In order to reach the ROBOTC and RVW National Championship, students had to qualify through pre-national tournaments in each zone of Mexico. The best programmers were selected to move onto the National Championship.

Check out this video to see programmers in action at Mexico’s ROBOTC and Robot Virtual Worlds National Championship!

Written by LeeAnn Baronett

March 18th, 2016 at 5:23 am

Cool Project: Tumblebug

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TumbleBugBlogDamien Kee, a VEX IQ and EV3 Super User, has created another cool project! This time he used one of his kids toys, the Tumble Bug Ball Drop, to test out how often the ball comes out of the left foot / right foot with a 50% probability. Damien says, “My boys got this toy for Christmas one year and I thought I’d put together a little device to check the probability of how it works. I used Ultrasonic Sensors with the EV3 and Colour Sensors (Proximity mode) with the IQ to keep track every time a ball went through the toy…. This would make a great experiment to run in class, not just with the Tumble Bug but all different types of kids toys.” We couldn’t agree more!

Damien used the VEX IQ and LEGO EV3 programmed in ROBOTC to run his tests. The programs figure out the percentage and display them on screen. Here is a full breakdown video of how the project was done …

 
 
 

 

Not only does this project allow for the practice of programming, but it gives the opportunity to assess variables when determining the results. Damien says: ”

What I love about doing these sort of extended investigations in class, is that rather than being a final conclusion, this now opens up a huge range of other questions and scenarios that you can test.

  • Why was there a difference?
  • Was the table level?
  • Do the different balls have an impact?
  • Does the placement speed in the mouth affect the results?”

Want to try it out yourself? Here are the code files Damien used:
EV3 RobotC –  EV3_tumblrbug.c
VEX IQ RobotC –  tumblrbug_VEX.c

To see the full hardware setup and find out the final results, check out his full blog here – Testing the Tumblebug (EV3 and VEX IQ)

 

Do you have a cool ROBOTC project you want to share with the world? If so, send us an email at socialmedia@robomatter.com and we’ll post it on our blog and social media pages!

Written by Cara Friez-LeWinter

March 2nd, 2016 at 6:00 am

Latest High Scores for our VEX Virtual Programming Skills Challenges!

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Updated Scores Can Be Found Here!

As some of you may know, we along with VEX Robotics and the REC Foundation have an exciting competition going on right now with the VEX and VEX IQ Programming Skills Challenges for Robot Virtual Worlds. This competition offers a low cost, high quality virtual competitions that enable students to test their problem solving and programming skills in the VEX Nothing But Net and VEX IQ Bank Shot Robot Virtual World Competitions. And, not only do these virtual competitions provide a great learning experience, the winner of each competition will receive an invitation to the VEX World Championship — April 20-23, 2016 at the Kentucky Expo Center in Louisville, Kentucky!

The competition kicked off a few months ago, and it is time to share our latest high scores …

VEX Scores Together

You still have one more month to compete and try to beat these high scores for a chance to qualify for VEX Worlds! Think you can do it? Learn more here robotc.net/recf and visit www.cs2n.org/competitions to sign up!

Important Deadlines:

  • Submissions for both contests are due by March 1, 2016.
  • Winners will be announced on March 11, 2016!

And remember, you must submit both your score and code through CS2N.org to officially register for the competition.

Written by Cara Friez-LeWinter

February 1st, 2016 at 12:32 pm

Cool Project: Arty the Dual-Bot

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Cool Project - ArtyFor our latest Cool Project, we have guest bloggers, Team 8086A – Team Semiconductors to discuss their unique dual-bot for last year’s VEX Robotics Skyrise competition. They went on to win the 2015 World Championship Science Division Create Award! Read more below …

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For the 2014-2015 VEX Robotics game, Skyrise, Team 8086A, Team Semiconductors, built a very unique robot, a dual-bot. This robot’s unique design included many advantages, most significantly the ability to multitask. However, along with the advantages came many challenges. The team worked hard all year to conquer the challenges and the assistance of ROBOTC in many of these challenges was invaluable.

Team Semiconductors

Team Semiconductor is a group of friends in Glen Allen, Virginia.  This independent team has its roots in two middle school VEX World Championship competitive robotics teams, Team Theodore (6740C) and Team Dave (6740D).  Several students from the two teams and their school’s Technology Student Association (TSA) who were moving on to high school and wanted to compete in VEX Robotics banded together to create a new team, Team Semiconductors.  Midway through the 2014-2015 season (Skyrise), the team revealed their one-of-a-kind design: Arty the Dual-Bot.

Semiconductors 01

Skyrise

Skyrise was the 2014-2015 Vex robotics game. The goal of Skyrise was to build a skyrise (a yellow pylon, built piece by piece). 4 points were awarded each section built, and putting cubes (hollow cubes, 8 inches wide) on the skyrise were worth another 4 points each. Then, you could put the cubes on varying height poles for 2 points, and if you had the top cube on the post, you scored 1 extra point. This was the tallest game vex had ever made. The highest item was the robot built skyrise which at max was about 60 inches tall.

Semiconductors 02

Arty: The Dual-Bot

Arty is a very unique robot designed to compete in Skyrise: a dual-bot. Arty consisted of two parts each performing specialized tasks simultaneously: an immovable tower that is dedicated to building a skyrise, and a rover, whose task is to move around the field placing cubes on poles and on the skyrise. These two pieces have a connector running between the two holding the wiring, and they also give the robot its name, “Arty” (RT for Rover/Tower).

 


 

Team Semiconductors had multiple reasons for using a dual-bot. The most important reason was the ability to multi-task, which allowed for higher scoring and the ability to still compete if our alliance partner is a no-show. This bot was made possible due to the high scoring potential in the starting area, with scoring skyrises. We noticed that many robots that would do skyrises wouldn’t even leave the starting square for the first minute, while stacking skyrises. We thought it would be best to have a stationary robot in there to score those while another part of our robot was doing something else. One of the biggest advantages of the stationary tower was its precision; instead of relying on time to move the skyrise, we could use potentiometers to measure the position of our claw, and drop the pylon once it lined up.

Arty can score high by itself in matches, up to 58 points on its own without autonomous bonus, allowing it to be able to carry most matches, regardless of alliance partner. It also has high skills scores, with the second highest Driver Skills and Programming Skills scores in Virginia, with 43 and 27 points, respectively.

Semiconductors 03

Why ROBOTC

Two main factors came into play for us choosing ROBOTC to program Arty: it’s easy to learn and it has the ability to use tasks. The first factor was essential, as our team had no previous experience in ROBOTC. The only previous experience with programming robots our team had came from using block code. The transition to using a text-based language, especially one we had almost no base in was worrying, and lead to questions about our ability to learn the language in-time to program the robot. Our lead programmer had experience in programming languages, but no experience in C-based languages, meaning there was a lot of learning involved in the first few weeks of programming. However, after those few weeks, we felt confident in our abilities with the program, and were able to create the complex programs used in Arty with almost no syntax trouble.

The second factor was specific mainly to Arty, but still very important. Due to Arty being a dual-bot, we needed a way to run programs for the rover and the tower at the same time. This was allowed by tasks, which can run side by side with each other, unlike functions, which run one after the other. These tasks allowed us to run the rover and tower side by side, but also allowed for smaller additions to increase efficiency.

Semiconductors 04

How ROBOTC was Used

As mentioned above, one of the key elements of our programming of “Arty” was the use of tasks for the control of both rover and tower. We used separate tasks in both driving and autonomous functions. We also used tasks to increase efficiency in our programs. For example, we used tasks to turn the tower arm and raise the tower simultaneously instead of one after the other to save time. One problem we came up against with tasks was the inability to pass inputs into the tasks. To get around this we created functions that modified global variables and then called the tasks, and used those global variables for things that would’ve needed to be input into the task.

One of the most interesting things we did in the rover’s drive tasks was creating a turret-centric drive. The turret on rover that could swing 360 degrees was always facing forward on the robot. Since we had an X-drive, any direction could be the front of the robot; it was all in how we programmed the wheels. One of the biggest problems rover had was its inability to turn without getting tangled in the connector. We put a turret on the top of the robot to prevent us from having to turn, but this made driving awkward. The solution to this: a turret-centric drive. We measured the location of the turret with a quad encoder and adjusted the values in Robot C according to which way the turret was facing. This made it so that whenever we hit up on the joystick the rover always drove in the direction its turret was facing, making it much easier to drive, since it now had a distinct “front”.

Semiconductors 05

In programming our tower, we found that we were always doing the same thing, but we were just changing times for movement, and target locations to account for swing. To save time and space in our program we used a for loop that looped for however many skyrises we were going to build. At the start of the loop we had a switch statement to assign all the values based on which piece we were stacking. We then had our previous generic code that we had been writing out inserted, with variables instead of numbers being used. This saved a lot of time in programming, as all values that needed to be adjusted were easily found in one place.

Due to the way the tower was built, sometimes our arm would get caught on something, and not finish the turn. To get around this our turn function had a self-check built in. At the start of the task, we would calculate approximately how long it should take for our arm to reach its position. At the end of the time period, we would then check to make sure we were in position. If we were not, we’d raise our arm and then try to turn again. This process would repeat for 3 times at most. If it reached its location, it would then lower the arm the same amount it raised it and continue the program. If it never reached its location it would set a variable to false, and then the program would stop, to avoid wasting scoring objects by dropping them.

 

 

ROBOTC helped the team maximize our unique robot design and Team Semiconductors went on to win the 2015 World Championship Science Division Create Award with Arty the dual-bot. You can learn more about Team Semiconductors and follow us on social media at http://www.VEXTeam8086.org.

– Team Semiconductors

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Test Your Skills with our Virtual Competitions!

VEX-RVW

If you’re looking for a cost-effective and fun way to participate in a robotics competition, check out or low cost, high quality virtual competitions that enable students to test their problem solving and programming skills.

Our VEX Nothing But Net and VEX IQ Bank Shot Robot Virtual World Competitions both simulate the single-player Robot Skills and Programming Skills modes of the physical Nothing But Net and Bank Shot competitions. And, the winners of the Robomatter sponsored VEX Nothing But Net and VEX IQ Bank Shot Robot Virtual World competition will receive an invitation to the VEX World Championship April 20-23, 2016 at the Kentucky Expo Center in Louisville Kentucky! To learn more, check out this blog post.

Do you have a cool ROBOTC project you want to share with the world? If so, send us an email at socialmedia@robomatter.com and we’ll post it on our blog and social media pages!

Written by Cara Friez-LeWinter

January 6th, 2016 at 6:00 am

Cool Project: VEX IQ Tetris

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CP VEX IQ TETRISTetris is a beloved and well-known classic game that many of us have been addicted to at one point or another. We wait patiently for that perfect “Tetrimino” that will create a horizontal line so the board continues to move down so the game keeps going. Well, our latest Cool Project does just that, but on a VEX IQ brain and programmed in ROBOTC!

Petr Nejedly created the game as an experiment to see what could be done with the VEX IQ platform outside of robotics. He says, “I have coded it ad-hoc in one night. The code is pretty … short, not really pretty. 233 lines including (rare) comments.” When we spoke through email he mentioned that game is currently not random at all. “So, my son came to me, that he has an improvement to the program. That I should use this random() function, it will be more fun to play … Teachable moment! We have discussed, how a computer, a very exact instrument that always follows the same instructions and in fact only moves numbers here and there, come up with random numbers. What is a PRNG and how you have to seed it (srand()), what are real sources of randomness and what kind of issues such a lack of true randomness could cause in real world, besides lack of fun.” At this point, Petr said he would like to leave the actual fix to the curious readers/programmers out there to see what they can do with it. (Let us know if you do!)

Check out the game in action here:

Petr was nice enough to share the souce code, which you can download here. You can also read the original VEX IQ forum discussing the project here.

Do you have a cool ROBOTC project you want to share with the world? If so, send us an email at socialmedia@robomatter.com and we’ll post it on our blog and social media pages!

Written by Cara Friez-LeWinter

December 3rd, 2015 at 6:15 am

Cool Project: EV3 Security Tank

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Cool Project EV3 TankKyle M. (aka Builderdude35) created a very cool project called the EV3 Krimzon Guard Security Tank! The tank is programmed in ROBOTC too, which was the first time Kyle programmed with our software. Kyle says, “[The EV3 Tank] features proportional IR beacon tracking, and a deadly-accurate turret targeting system. If that’s not enough, it also has a massive spiked steamroller on the front!”

 

 

 

 

Watch the tank in action here:

 

 

 

The tank includes an EV3 brick, two EV3 large motors, steam roller with spikes, a rotating dual-barrel turret, and three sensors! “There is a Mindsensors SumoEyes mounted on the chassis just above the steam roller (you will see the two red LED’s) that detects the targets in zones left, right or straight ahead. Just above that is a LEGO Infrared sensor that is used for beacon tracking. Lastly, there is a LEGO Ultrasonic sensor that rotates with the turret to confirm target acquisition.” Pretty awesome!

For a more detailed breakdown of the tank and code, visit his website here.

Do you have a cool ROBOTC project you want to share with the world? If so, send us an email at socialmedia@robomatter.com and we’ll post it on our blog and social media pages!

Written by Cara Friez-LeWinter

December 3rd, 2015 at 6:10 am

Announcing the Mini Urban Challenge for Robot Virtual Worlds!

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Mini Urban Challenge

We are very excited to announce a brand new Robot Virtual Worlds Competition, Mini Urban Challenge! Our new virtual simulation is based off the national competition sponsored by The Doolittle Institute, the Air Force Research Laboratory, and Special Operations Command.

 


 

The purpose of this competition is to design and program a robotic vehicle that can autonomously navigate a mini-urban city, using a virtual LEGO® MINDSTORMS® EV3 robot. The robot must enter the mini-urban city from a home base, travel through the city to assigned parking lots, park in any parking space in each assigned parking lot, and then exit the city by returning to the home base and parking in the home base. The robot should use the optimal path (shortest distance) through the mini-urban city to visit the parking lots. While in the city, the robot should obey traffic rules by stopping at stop signs and following standard right-of-way rules when other vehicles are encountered. You can find the official rule here.

Our new Robot Virtual World features three modes for the Mini Urban Challenge:

1. Practice Mode allows students to develop and test their code for the challenge, without worrying about scoring, penalties, or the clock.

2. Competition Mode is the standard version of the challenge field, complete with timing and scoring to reflect the real world competition.

2015-10-23_15-07-45

3. City Mode is an exciting, themed version of the challenge field, which also includes timing and scoring that reflect the real world competition.

2015-10-23_15-09-32

Download and install the Mini Urban Challenge for Robot Virtual Worlds here! To submit your scores and compete with others, you will need a free account from the Computer Science Student Network!

The VEX and VEX IQ Programming Skills Challenge for Robot Virtual Worlds

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VEX RVW

Robomatter, VEX Robotics, and the REC Foundation are excited to present low cost, high quality virtual competitions that enable students to test their problem solving and programming skills in the VEX Nothing But Net and VEX IQ Bank Shot Robot Virtual World Competitions. And, not only do these virtual competitions provide a great learning experience, you could qualify for the 2016 VEX Worlds!

This Year’s Games

Both games simulate the single-player Robot Skills and Programming Skills modes of the physical Nothing But Net and Bank Shot competitions.

In the Nothing But Net Robot Virtual Worlds Competition, your goal is to program your virtual robot to put as many balls as you can in the Low and High goals, and by Elevating Robots in your Climbing Zone.

 

For the Bank Shot Robot Virtual Worlds Competition, your robot will need to pick up balls and make some tricky bank shots! The object of Bank Shot is to attain the highest score by Emptying Cutouts, Scoring Balls into the Scoring Zone and Goals, and by Parking Robots on the Ramp. There are a total of forty-four Balls available as Scoring Objects in the game, with one Scoring Zone, one Goal, and one Ramp on the field.

Winners Qualify for VEX Worlds!

splash-image_RECF

The winners of the Robomatter sponsored VEX Nothing But Net and VEX IQ Bank Shot Robot Virtual World competition will receive an invitation to the VEX World Championship April 20-23, 2016 at the Kentucky Expo Center in Louisville Kentucky!

Important Deadlines:

  • Submissions for both contests are due by March 1, 2016.
  • Winners will be announced on March 11, 2016!

To learn more about the VEX and VEX IQ Programming Skills Challenge for Robot Virtual Worlds, visit www.robotc.net/recf and visit www.cs2n.org/competitions to sign up!

Written by LeeAnn Baronett

November 17th, 2015 at 6:00 am