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cestabrooks's blog

FRC 2017 Recap

cestabrooks's picture
Submitted by cestabrooks on Sun, 04/23/2017 - 11:07
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

cestabrooks's picture
Submitted by cestabrooks on Fri, 01/15/2016 - 09:29

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

cestabrooks's picture
Submitted by cestabrooks on Thu, 07/03/2014 - 14:19
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

cestabrooks's picture
Submitted by cestabrooks on Mon, 02/24/2014 - 13:30

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.

Cypress FirstTouch PSoC

cestabrooks's picture
Submitted by cestabrooks on Fri, 02/07/2014 - 14:31
This little microcontroller can be used to make a custom driver station control module containing buttons, potentiometers, switches, etc. It needs to be programmed with the FRC software which should be installed with the NI utilities/driver station update. You will need to find the .hex file which is in c:\Users\Public\Public Documents\FRC\FRC_IO.2012.v3.hex The pinouts for the board can be downloaded from the US First site.

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