Archive for category: Robots

  • VEX Cortex I2C NXT Cable HOWTO

    VEX Cortex I2C NXT Cable HOWTO

    Experiments, Sensors, VEX March 20, 2011 14:41 23 comments

    As promised,here’s an easy to follow HOWTO for making your own VEX Cortex to NXT converter cable for I2C sensors. Please keep in mind a few things: Do this at your own risk This won’t work with sensors that require 9V to operate This won’t work with analogue sensors Do […]

     
  • I2C on the VEX Cortex

    I2C on the VEX Cortex

    The VEX Cortex is a nice platform made by VEX Robotics. It is supported in two programming environments, one of which is ROBOTC. Much to my dismay, the master firmware does not support I2C, which is why ROBOTC does not support it. I don’t really like it when someone tells […]

     
  • Bit Banged I2C Master on ROBOTC for Arduino

    Bit Banged I2C Master on ROBOTC for Arduino

    Arduino, ROBOTC, Sensors February 20, 2011 16:26 10 comments

    After spending two hours working on the changelog for the upcoming release of my driver suite, I thought I’d go play with something that was a bit more fun. I’m part of the ROBOTC for Arduino test group, which has been a lot of fun. The Arduino build does not […]

     
  • Rotacaster One-Kit Omniwheel Program Update

    NXT, Robots January 6, 2011 12:00 2 comments

    I made some updates to the line following program for the Rotacaster One-Kit Omniwheel robot.  This version 2.0 allows you to adjust the Gain and Power variables by turning the back wheels back and forth.  When you’re happy with the values, you can hit one of the bumpers and it’ll […]

     
  • A New Toy To Play With

    Robots, VEX January 2, 2011 22:44 3 comments

    These two packages arrived about 1.5 weeks ago, courtesy of the Robotics Academy as a thank you for some of the things I’ve done for them over the past few years.  You can’t even imagine how amazingly grateful I was! This is a complete VEX Cortex Super Bundle, that sells […]

     
  • Fun with ROBOTC for Arduino

    Arduino, ROBOTC December 28, 2010 18:38 no comments

    Among all of the cool presents I got for Christmas this year were two new shields for my Arduino. I got a L298N Shield and a DFRobot LCD Keypad Shield. I wanted some new shields so I could write drivers for the Arduino port of ROBOTC. I found the original […]

     
  • Rotacaster One-Kit Omniwheel

    NXT, Robots December 20, 2010 21:16 7 comments

    As I was building one of my previous omniwheel frames, I wondered if I could rebuild it using nothing more than the parts that came with an NXT 2.0 Retail kit and three Rotacaster omniwheels.  After a few hours I came up with this: Quite nice and a pretty stiff […]

     
  • Another Omniwheeled Robot

    NXT, Robots December 12, 2010 11:00 4 comments

    Earlier this week I received another package from Rotacaster with some more wheels for me to test and play with.  These ones had new molded hubs, instead of the white 3D printed ones. The grip on the axles is much better now and they’re still working on making them even […]

     
  • Apollo, The Littlest LineLeader

    NXT, ROBOTC, Robots, Sensors November 29, 2010 15:11 1 comment

    This is Apollo, the smallest NXT based line follower I’ve ever made.  It’s loosely based on A-Maze-Ing, which I designed and built quite a while ago. Apollo is equipped some pretty cool stuff: The new Mindsensors Numpad A Mindsensors LineLeader sensor Two Rotacaster wheels The program in this robot is […]

     
  • Frankenfollower

    Arduino, ROBOTC, Robots November 21, 2010 21:28 2 comments

    Part Lego, part Arduino, part BoeBot, this is Frankenfollower. This robot was programmed in ROBOTC for Arduino, a port that is still in alpha stage of development but can be used quite nicely for programming the Arduino Duemilenova.  Other Arduino variants will be supported very soon. The Arduino port of […]