cestabrooks's blog

FRC 2018 Teaser

Here's the new FRC 2018 Teaser, folks. Enjoy!

FRC 2017 Recap

Great year for the team, our best finish ever at WPI district taking second on the alliance with teams 1519 and 190. Here are my programming notes for the year.

Sensors & Autonomous

Sensor feedback is not optional. All systems MUST have appropriate sensors in order to properly code autonomous mode. This includes encoders or counters for all motors, rangefinders for distance sensing, gyros for steering, and limit switches where appropriate. The new IMU worked great for steering in auto mode this year, but really requires drive motors to be coded with PID motor control.

FRC 2016

This is our second year with the RoboRio control system and Eclipse IDE. Problems we've had this year:

  1. Could not "see" the radio. This was because it was last used and programmed for competition. Need to reset and reprogram it for practice.
  2. Could not deploy code to RoboRio. Hard reset required, then update firmware through USB interface & fixed IP address.
  3. Eclipse occasionally gives build errors. Refresh files/Rebuild index/etc.

Web Site Maintenace

Happy Summer, Everyone! I have been performing some maintenance to the web site this summer which includes the following:
  • Migrated to a better & less expensive hosting service (from Godaddy -> Hostgator)
  • Changed the primary domain name to lcc1740.org (lcc1740.net redirects here)
  • Upgraded Drupal from 7.23 to 7.28
  • Performed a few security updates to .htaccess files
  • Revised the Legacy page to include embedded links to the individual competition year nodes

I2C

I found a great reference for the I2C specification which can be used to communicate between the cRio/Digital Sidecar and a coprocessor such as an Arduino. Not sure when it would be better to use I2C versus, say, ethernet and the WPILib NetworkTables.

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