Forum: Electrical
21-11-2016, 10:46
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Replies: 18
Views: 1,581
Re: Rate my Talon SRX breakout (EagleCAD)
Now that you mention conformal coating it, I've also heard that it's possible to use nail polish as well. A spray-on like you suggested would probably work better though, speed up production of the...
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Forum: Electrical
21-11-2016, 01:13
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Replies: 18
Views: 1,581
Re: Rate my Talon SRX breakout (EagleCAD)
A case would probably be too bulky, the only things at risk of shorting are on the top side, so I figure It wouldn't be to hard to spread some over the top of each board. I was thinking of using some...
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Forum: Electrical
21-11-2016, 00:31
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Replies: 18
Views: 1,581
Re: Rate my Talon SRX breakout (EagleCAD)
According to OSH's design rules, everything passes DRC so I hope so. I was kinda worried about that myself for a bit, but like I said the DRC don't care so I guess I don't.
On a somewhat related...
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Forum: Electrical
21-11-2016, 00:02
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Replies: 18
Views: 1,581
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Forum: Electrical
20-11-2016, 20:37
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Replies: 18
Views: 1,581
Re: Rate my Talon SRX breakout (EagleCAD)
Good point, now that you mention it I'll probably split the GND pad in half with a small junction between the two, like you'd have with thermals and such. Maybe into thirds. I'll have to see how much...
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Forum: Electrical
20-11-2016, 19:40
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Replies: 18
Views: 1,581
Re: Rate my Talon SRX breakout (EagleCAD)
How do you figure? Like a GND pad for each switch? ATM I just have one large pad for everything, I figured it would be large enough for both switches and either the analog pot or encoder return. Now...
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Forum: Electrical
20-11-2016, 16:58
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Replies: 18
Views: 1,581
Re: Rate my Talon SRX breakout (EagleCAD)
The schematic should be wired such that the LED is always fed from the 3.3v rail, but the transistor base is fed by either 5v or 3v from the encoder. Unless that's not how electronics works, which is...
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Forum: Electrical
19-11-2016, 22:56
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Replies: 18
Views: 1,581
Re: Rate my Talon SRX breakout (EagleCAD)
I'm actually using the sparkfun libraries for the 0603 LED (0603 because I have them on hand). I did the calcs for the LEDs and, if I'm remembering properly, 100 ohm is what I worked out for about 10...
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Forum: Electrical
19-11-2016, 22:18
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Replies: 18
Views: 1,581
Re: Rate my Talon SRX breakout (EagleCAD)
Also the two holes on the end are for zip tying the cables down. Maybe I should have explained that earlier. You're supposed to solder whichever wires you require to the corresponding pads on the...
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Forum: Electrical
19-11-2016, 22:10
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Replies: 18
Views: 1,581
Rate my Talon SRX breakout (EagleCAD)
I made a little SRX Breakout board for our talons, as our ribbon cable to encoder cable solder joints were always a bit janky and heatshrink tumors bother me. I stuck some LEDs on the encoder A and B...
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Forum: Extra Discussion
17-04-2016, 13:52
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Replies: 17
Views: 3,226
Re: pic: Basketball Drive
Reminds me of this guy's rideable ball balancing robot, that sat on top of a bowling ball
https://www.youtube.com/watch?v=vx-jCQpHRTo
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Forum: Extra Discussion
17-04-2016, 13:35
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Replies: 33
Views: 3,692
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Forum: Java
28-03-2016, 01:08
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Replies: 12
Views: 1,079
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Forum: Robot Showcase
08-03-2016, 22:09
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Replies: 18
Views: 3,802
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Forum: Programming
04-03-2016, 00:11
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Replies: 6
Views: 1,069
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Forum: Programming
03-03-2016, 17:12
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Replies: 6
Views: 1,069
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Forum: Programming
03-03-2016, 15:01
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Replies: 6
Views: 1,069
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Forum: General Forum
29-02-2016, 16:09
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Replies: 9
Views: 878
Re: New radio question
Currently we're trying to use the new omp as a bridge and an old dlink modB as a 5ghz AP but for some reason they don't play nice. We used the configuration utility to flash both, the omp as a bridge...
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Forum: Robot Showcase
06-02-2016, 01:04
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Replies: 37
Views: 11,214
Re: Team 842's drivetrain for FIRST Stronghold!
Reducing shock to the electronics is a major benefit, but the main reason we went down this path was because of the improved control the driver has going over this terrain. With the straight...
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Forum: Extra Discussion
31-01-2016, 21:26
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Replies: 3
Views: 928
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Forum: Technical Discussion
30-01-2016, 02:55
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Replies: 3
Views: 682
Re: Pneumatic wheel drop distance?
Are the wheels under the full weight of a competition robot? From what we've seen, as soon as you begin putting weight on the chassis, the wheels compress and you begin to run into the issue of...
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Forum: Programming
19-01-2016, 23:34
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Replies: 8
Views: 1,140
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Forum: Technical Discussion
18-01-2016, 20:21
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Replies: 6
Views: 1,147
Re: NavX MXP Accuracy
If you want absolute position over the whole duration of a match, I don't think encoder wheels will cut it this year, with all the bumps and various defenses, not without re-zero-ing repeatedly.
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Forum: Programming
18-01-2016, 19:46
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Replies: 8
Views: 1,140
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Forum: Programming
11-01-2016, 17:57
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Replies: 6
Views: 1,401
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Fun and adrenaline make you waaaaaaaay better at robotics. Proven fact. - Matt Krass [more] 
