Forum: Robot Showcase
03-09-2016, 09:09 PM
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Replies: 93
Views: 36,039
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Forum: General Forum
03-09-2016, 03:02 PM
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Replies: 93
Views: 23,434
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Forum: General Forum
03-09-2016, 02:34 PM
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Replies: 82
Views: 11,655
Re: Team Update 15 (2016)
If there wasn't an arbitrary plastic bag keeping me from adapting to changing parameters I would be more inclined to agree :]
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Forum: General Forum
03-09-2016, 01:24 AM
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Replies: 82
Views: 11,655
Re: Team Update 15 (2016)
I'm curious as to the durability of one continuous flap of vinyl vs. 5 separate flaps. The former option would certainly have been better for low bar teams, even if the hanging pipe had to go.
The...
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Forum: Programming
03-08-2016, 10:43 PM
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Replies: 24
Views: 2,029
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Forum: Programming
03-08-2016, 02:18 PM
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Replies: 4
Views: 1,216
Re: Heading PID tips
In practice you are typically moving so slowly at this minimum output that the oscillation shouldn't be a problem (you probably have a small deadband around the setpoint at which point you say "good...
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Forum: Career
03-08-2016, 11:40 AM
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Replies: 198
Views: 34,993
Re: What's your day job?
Mine has changed since this thread started too.
I am a software engineer working on robotics projects for X (formerly called Google [x]). This is the part of Alphabet (Google's new parent company)...
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Forum: Programming
03-08-2016, 11:33 AM
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Replies: 4
Views: 1,216
Re: Heading PID tips
This is a constant source of annoyance for doing precise turning with high-friction wheels. Some solutions that have worked for us in the past:
1) Figure out what the minimum required output is to...
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Forum: Scouting
03-07-2016, 02:56 PM
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Replies: 7
Views: 1,986
Re: After One Week
I suspect the Week 1 "both alliance average" scores will be roughly equal to Championships single alliance averages (though crossings will be lower and boulder/tower points will be higher). This...
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Forum: General Forum
03-07-2016, 01:27 PM
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Replies: 48
Views: 4,192
Re: Is OPR an accurate measurement system?
If you assume that every robot makes the same contribution to the score in every match regardless of their teammates, it is a perfect model.
The less that assumption holds, the less the model is...
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Forum: General Forum
03-07-2016, 01:05 PM
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Replies: 48
Views: 4,192
Re: Is OPR an accurate measurement system?
Robot A is a robot that crosses 10 defenses per match and can therefore score (let's ignore auto for now) 50 points on their own per match.
Let's say that Robot A is far and away the best defense...
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Forum: General Forum
03-04-2016, 11:03 PM
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Replies: 90
Views: 15,183
Re: Removal of Low Bar Fabric
With the right set of defenses on the field and a little bit of HP skill, it is already fairly straightforward (and legal) to bowl all the way into the courtyard.
(The details are left as an...
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Forum: General Forum
03-04-2016, 07:33 PM
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Replies: 90
Views: 15,183
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Forum: Programming
03-04-2016, 11:51 AM
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Replies: 13
Views: 1,321
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Forum: Programming
03-02-2016, 05:06 PM
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Replies: 15
Views: 2,076
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Forum: General Forum
02-26-2016, 04:15 PM
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Replies: 32
Views: 6,025
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Forum: Rumor Mill
02-25-2016, 11:01 AM
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Replies: 119
Views: 22,631
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Forum: Technical Discussion
02-23-2016, 02:08 PM
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Replies: 8
Views: 1,289
Re: Talon SRX PID tuning
Read the Talon SRX Software Reference Manual (https://www.ctr-electronics.com/Talon%20SRX%20Software%20Reference%20Manual.pdf) very closely so that you understand what exactly each of your gains...
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Forum: General Forum
02-22-2016, 06:37 PM
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Replies: 66
Views: 11,730
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Forum: C/C++
02-13-2016, 12:48 AM
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Replies: 7
Views: 681
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Forum: Control System
02-12-2016, 01:24 PM
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Replies: 4
Views: 1,118
Re: Field Positioning with IMU
There are many sensors that can inform you about the current position of your robot. Encoders, gyros/IMUs, vision systems, ultrasonic sensors, LIDARs, contact sensors, etc...
Moreover, there are...
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Forum: Sensors
02-11-2016, 01:32 PM
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Replies: 6
Views: 882
Re: am-2899 Absolute Encoder
You can't do it atomically to my knowledge. But rising-rising is pretty much constant from one sample to the next (the oscillator is thermally sensitive, so it changes slowly).
We initially...
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Forum: General Forum
02-11-2016, 12:49 PM
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Replies: 128
Views: 32,897
Re: Terrifying Karthik
If you are going to pick one thing to be good at, why pick the thing that every alliance only benefits from having one of (and that many shooting robots may want to utilize to improve their cycle...
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Forum: Sensors
02-11-2016, 12:36 PM
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Replies: 6
Views: 882
Re: am-2899 Absolute Encoder
<off-topic>
The FPGA does support this, though the documentation for the semi-period mode feature (at least in the Javadocs) is misleading.
There is more accurate documentation...
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Forum: Control System
02-10-2016, 03:05 PM
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Replies: 4
Views: 1,118
Re: Field Positioning with IMU
This is the right question to ask!
In the presentation, we mostly talked about the case where major disturbances are not expected, because this is simpler (still, I think the presentation was a bit...
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If a team wants to cheat then it does nothing but give them a bad cloud hanging over their own heads. - Jon K. [more] 
