PID is a programming algorithm that’s used to make a robot drive straight, hold an arm in place, or slow down as it approaches a target. Making precise and smooth movements using PID on your competition robot will take you a long way toward winning the autonomous bonus.
(Edit: This post was originally published on May 18, 2017; it has been updated on July 13, 2017 to reflect the recently announced changes in judged awards.) All VEX competitions include trophies for the tournament winners and (if applicable) skills champion. They also include a number of “judged awards” that are based on criteria other […]
(Edit: this post was originally published on May 1, 2017; it has been updated on July 19, 2018 to reflect the current VRC Awards criteria.) It’s the new season, and teams that are getting a jump-start on things may be about to start on their engineering notebooks. Or maybe you’re a new team and you’re […]
Every time you buy a VEX 393 motor, it comes with a little plastic packet of doo-dads whose function is not immediately apparent. These items are called shaft couplers and are TOTALLY OPTIONAL for you to use.
My team recently encountered an unfortunate aspect of sensor data: “noise”. In order to make use of sensors for precision movements, such as driving straight, one needs a way to identify and filter out the junk. Here’s a step-by-step description of our median filtering process.
There is much information on the VEX Forum and various websites concerning PID, and most of them do a better job of explaining how it works and how to implement it than I could hope to achieve. Here’s a post with links to the resources I found useful.
Here are some links and tips to get you started in this year’s Turning Point VEX game.
There is much code available online for how to program an auton selector LCD menu. This post reviews our favorite code. It’s simple to understand and customize, provides 100% unambiguous feedback, and allows you to change your mind or fix an accidental button-push.
Superior build quality results in a superior performing robot. It’s not just that good building practices result in a better *looking* robot, they result in a longer-lasting, more durable robot. And that translates directly into how your team does in match play. Here are some tips that will move your team toward a better robot.
On April 5, 2018 the Game Design Committee announced major changes to how the playoffs will be structured at VEX Worlds—that will carry over into next year’s game.