Forum: Off-Season Events
11-30-2016, 01:56 AM
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Replies: 10
Views: 1,823
Re: Fall Workshops At Capital City Classic
We've released the slides for all workshops on our website at http://www.citruscircuits.org/fall-workshops.html!
We'll be publishing videos and any additional material in the near future. They'll be...
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Forum: Programming
10-21-2016, 05:45 PM
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Replies: 57
Views: 5,847
Re: Tuning PID Constants Over a Range
As I mentioned, we didn't have changing setpoints last year, so this wasn't a problem that we ran into - we basically solved it by ignoring it :P
When I said calculating motion profiles, I was...
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Forum: Programming
10-20-2016, 12:19 PM
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Replies: 57
Views: 5,847
Re: Tuning PID Constants Over a Range
The RoboRIO has the power required to calculate motion profiles on-the-fly. In fact, despite not having any changing setpoints last year, we still did trapezoidal motion profiling largely...
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Forum: Programming
10-18-2016, 10:41 AM
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Replies: 57
Views: 5,847
Re: Tuning PID Constants Over a Range
Austin is completely correct with his math AFAIK, but there's also an intuitive way to think about it: When your arm is at 90deg (straight up), you don't want to be applying any force to counter...
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Forum: Extra Discussion
10-17-2016, 04:37 PM
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Replies: 57
Views: 10,750
Re: pic: 1678 Offseason Robot Progress
With great difficulty and possibly tears :P
The electronics on this bot are pretty crazy, given how small it is. We ended up needing to mount the PCM on the turret, because it won't fit...
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Forum: Programming
10-03-2016, 03:23 AM
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Replies: 57
Views: 5,847
Re: Tuning PID Constants Over a Range
Just want to point out that this is probably easier than you think to control - you can do feed forward by applying voltage proportional to the cosine of the angle of the arm to cancel out gravity,...
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Forum: Programming
10-03-2016, 02:59 AM
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Replies: 57
Views: 5,847
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Forum: Programming
09-27-2016, 06:25 PM
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Replies: 57
Views: 5,847
Re: Tuning PID Constants Over a Range
I would agree that motion profiling + feed forward will help a lot. 254 and 971 did a great video on this at champs in 2015 (https://www.youtube.com/watch?v=8319J1BEHwM).
The process that we used...
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Forum: Off-Season Events
09-20-2016, 01:44 AM
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Replies: 10
Views: 1,823
Re: Fall Workshops At Capital City Classic
We will record all of the workshops, and release the videos and slides for all of the presentations, along with any other materials the presenters have (code, links, etc).
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Forum: Off-Season Events
09-19-2016, 12:36 AM
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Replies: 10
Views: 1,823
Fall Workshops At Capital City Classic
Team 1678 is proud to announce our 3rd annual fall workshops! These workshops will be run during Capital City Classic, and cover all aspects of a FRC team, including mechanical, programming,...
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Forum: Programming
09-01-2016, 02:08 AM
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Replies: 3
Views: 2,039
Re: 1678 code release
There are a few reasons that we didn't use wpilib's command based system. The first one is that our tendency is to look at what we want to do, and decide and create the architecture based on that -...
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Forum: Programming
08-31-2016, 10:55 PM
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Replies: 3
Views: 2,039
1678 code release
1678 is proud to present our code for our 2016 robot, Adrian (https://github.com/frc1678/robot-2016)!
Some cool features of our code include:
5 different control loops
Unit-aware variables...
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Forum: Programming
08-31-2016, 12:23 PM
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Replies: 15
Views: 1,739
Re: Auto-Aligning in Teleop
As adciv mentioned, placing things in teleop periodic is a Bad Idea. People tend to say that TeleopPeriodic and AutonomousPeriodic run at 20Hz, but they actually run whenever they get a packet from...
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Forum: General Forum
08-29-2016, 03:12 PM
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Replies: 34
Views: 2,886
Re: Favorite Team Moments
Just to contrast with Mike's post above, all of my favourite moments haven't been about winning, or even competition.
When I think about why I keep coming back to FRC, it's because of the people...
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Forum: General Forum
04-26-2016, 01:19 PM
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Replies: 48
Views: 12,066
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Forum: Programming
04-11-2016, 02:18 PM
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Replies: 22
Views: 3,394
Re: Eclipse Sucks.
I think that people have given a good overview of the advantages and disadvantages of eclipse. If you do decide to use something else, be sure to check out our build system. We use bazel...
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Forum: Robot Showcase
03-16-2016, 12:28 AM
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Replies: 105
Views: 24,296
Re: 1678 Two Ball Auto
For those of you who didn't catch it on GameSense, here's the unedited version:
https://www.youtube.com/watch?v=6bAus33DvhQ
We didn't run it at CVR because our one ball auto was much more...
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Forum: Regional Competitions
03-10-2016, 05:13 PM
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Replies: 39
Views: 9,390
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Forum: Robot Showcase
03-07-2016, 12:04 PM
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Replies: 105
Views: 24,296
1678 Two Ball Auto
After a lot of work, we're proud to present our two ball auto routine!
https://goo.gl/photos/NLA2oktnyhnwoRjV7
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Forum: Programming
02-10-2016, 11:48 AM
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Replies: 14
Views: 1,173
Re: mdns won't work with new radio
When you disabled IPv6, was that on the radio, or on the rio?
We've had issues with mDNS in the past, so it would be nice to know if there's a simple solution.
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Forum: General Forum
01-08-2016, 02:07 PM
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Replies: 16
Views: 6,587
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Forum: Championship Event
04-25-2015, 06:28 PM
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Replies: 144
Views: 25,569
Re: Einstein Field
We're only able to build 5 stacks, and have been for the entire season.
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Forum: Championship Event
04-25-2015, 03:51 PM
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Replies: 9
Views: 1,751
Re: Live feed missing can races?
Ah, ok. I've been only watching Newton, and it seemed to consistently start at the very beginning of the match.
Anyways, I really hope that this will be fixed before Einstein starts as well.
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Forum: Championship Event
04-25-2015, 03:42 PM
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Replies: 9
Views: 1,751
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Forum: Championship Event
04-25-2015, 02:48 PM
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Replies: 132
Views: 35,550
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Sustaining an FRC team is really hard! - Jared Russell [more] 
