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Electrical 2017

Attendance

Note Info

Students
Mentors
Date & Time
Location & Author

  • Adam P.

  • 1/23/2017

  • 3 hours

  • Shapland Shop

  • Alexandre G.

Work Completed

  • Compiled mjpg-streamer on the pi
  • Wrote two python scripts
    • Allows for setting the exposure of camera
    • Starts the streamer
  • Started updating frisbee bot's electrical hardware
    • Stripped old components
    • Plan on replacing with victors
  • Got PID code to work for drivetrain rotation to specific angles
    • Still need small tweaking for PID values themselves

Challenges

  • Apparently only Adam had write priviliges to the new github repo
  • Told robot to strafe when I was trying to rotate...
  • Gyro is not as precise as we might want, seems off by 5-10 degrees each 90.  Can probably play with gain/calibration.  Also NavX on order to play with.

Work for Next Meeting

  • Do some testing with the gyro to see how far off the values are, seeing if it is possible to fix the inaccuracies...
  • Get streaming working well on raspi
  • Get exposure control on driverstations (Needs Work)
  • Get auto-aim code from last year integrated into 2017 robot code
  • Start figuring out how we might manuver the robot during auto
    • Get access to network tables
    • Start by simply rotating towards the pin
    • Next attempt strafing so the robot is aligned with the pin
    • Calculate distance from retroreflective tape

List from Mike (preventative measures):

  • Batteries
    • Battery Beak, logging and tracking internal resistance
      • Make a google spreadsheet to track battery data
      • Use computer to collect data/make a graph about voltage over time
    • Put meaningful labels on the batteries
    • Build load testing board
      • Resistors!
  • Power Distribution Panel
    • ​Can read voltage/current on every port
      • Could be used for diagnostics
  • Make a checklist
    • Learn how to read LED indicators on all components
    • Guidlines for checking wire integrity
    • Unit tests in robot code
      • Check to see if sensors are working?
      • Motors running correctly
      • Battery has enough voltage
      • Check the pneumatic pressure as well as solenoids
    • Useful for prematch/prebagging​
    • Voltimeter between the various locations
  • Sensors
    • Range finders - analog IO -> RIO (code)
    • Touch sensor - digital IO -> RIO (code)
  • Checkout Code // Comptetion Code
    • ​

On Schedule?

PID is on its way to being better than last year...