Forum: General Forum
11-08-2016, 08:51
|
|
Replies: 33
Views: 4,278
|
|
Forum: Technical Discussion
15-06-2016, 11:39
|
|
Replies: 11
Views: 1,273
Re: Jetson comm to RoboRIO
Thank you all. It looks like ethernet sockets is the clear winner. I guess we (more likely just me) have some homework to do.
|
|
Forum: Technical Discussion
07-06-2016, 09:10
|
|
Replies: 10
Views: 1,850
|
|
Forum: Technical Discussion
07-06-2016, 08:53
|
|
Replies: 11
Views: 1,273
Jetson comm to RoboRIO
Over the summer, FRC1559 is hoping to port our Stronghold autonomous vision code from Raspberry PI2 to Jetson TX1. We are curious what interfaces team have tried to get the data to the RoboRIO? It...
|
|
Forum: General Forum
22-04-2016, 13:36
|
|
Replies: 13
Views: 1,706
|
|
Forum: Scouting
18-04-2016, 11:32
|
|
Replies: 76
Views: 9,895
|
|
Forum: Robot Showcase
05-04-2016, 12:19
|
|
Replies: 57
Views: 10,177
|
|
Forum: Rules/Strategy
27-02-2016, 08:03
|
|
Replies: 117
Views: 10,629
|
|
Forum: Electrical
26-02-2016, 08:01
|
|
Replies: 22
Views: 1,987
Re: HELP NEEDED: Solenoids not firing
Yes, a 24V coil needs 24V to work reliably. The diode lighting at 12V happens on some 24V solenoids, but even then unreliably. The coil on the solenoid should be marked with the voltage and you...
|
|
Forum: Electrical
26-02-2016, 07:55
|
|
Replies: 22
Views: 1,987
Re: HELP NEEDED: Solenoids not firing
Yes. That means it only has one active coil and the other direction is activated by a spring. On a dual coil solenoid you pulse A or B to set the position and an air "pilot" holds it in the last...
|
|
Forum: Electrical
25-02-2016, 14:47
|
|
Replies: 22
Views: 1,987
Re: HELP NEEDED: Solenoids not firing
Problem solved.
From the data sheet:
• 2-position, single solenoid normally closed spring return;
Since it is normally closed, when the solenoid is not powered, the spring returns it to the...
|
|
Forum: Electrical
25-02-2016, 13:57
|
|
Replies: 22
Views: 1,987
Re: HELP NEEDED: Solenoids not firing
Good point - if double solenoid and pulse both nothing happens!!! If they are double solenoids, unplug one side and try it then repeat for other side.
|
|
Forum: General Forum
25-02-2016, 13:44
|
|
Replies: 119
Views: 13,713
Re: Al's 2016 Inspection Thread
Maybe differentiate a side from a segment of a side (for sides with gaps)? Maybe outlaw circular bumpers and require "organic" convex perimeter shapes to be made from >8" segments of bumper with...
|
|
Forum: General Forum
25-02-2016, 11:41
|
|
Replies: 119
Views: 13,713
Re: Al's 2016 Inspection Thread
I disagree the minimum side is 16". I propose that a side that is 8" long, completely protected by bumpers has bumpers 8" from each vertex. The minimum side is essentially 8" not 16". Of course...
|
|
Forum: Technical Discussion
25-02-2016, 10:09
|
|
Replies: 22
Views: 2,606
Re: Diagnosing Belt Skip Under Load
The simplest (assuming you are using CAN) is to use the new motion profiling built into the SRX. Either way, you should read the CTR documentation to understand what motion profiling is and what it...
|
|
Forum: Electrical
25-02-2016, 09:51
|
|
Replies: 54
Views: 3,664
|
|
Forum: Technical Discussion
25-02-2016, 09:38
|
|
Replies: 22
Views: 2,606
Re: Diagnosing Belt Skip Under Load
I agree with several previous posts that the problem is the small pulley. The problem is that you do not have enough "teeth in mesh". Slowing down and/or ramping will definitely help, but it is...
|
|
Forum: Electrical
25-02-2016, 09:07
|
|
Replies: 22
Views: 1,987
Re: HELP NEEDED: Solenoids not firing
I am no expert, but I believe the solenoids are not polarized. The coil is active when there is current and passive (pilot air holds last state) when no current. They even work with AC signals.
My...
|
|
Forum: Electrical
24-02-2016, 14:12
|
|
Replies: 54
Views: 3,664
Re: HELP: Voltage Drop
I agree that there is a definitely a scrub problem given noodle "tubes" and no center drop. The relative wheel traction needs to be changed. Maybe smaller KOP wheels in front? Intentionally offset...
|
|
Forum: Pneumatics
24-02-2016, 13:44
|
|
Replies: 6
Views: 679
Re: PCM Brownout
It is hard to induce brownout while on blocks - especially with only one CIM fuse active. Decelerating rapidly makes sense since the drive needs to overcome the inertia of the robot - but not while...
|
|
Forum: Pneumatics
24-02-2016, 12:24
|
|
Replies: 6
Views: 679
Re: PCM Brownout
It may be that your battery voltage is dropping low enough that the PCM can not generate the correct voltage to drive the solenoids. It is probably real. This year in particular with many teams not...
|
|
Forum: General Forum
24-02-2016, 09:56
|
|
Replies: 20
Views: 2,269
Re: A question about 8in Bumpers...
I would vote for Convex Perimeter - or maybe String Perimeter.
Bumpers must cover at least 8" on either side of the Convex Perimeter and be hard mounted to "frame" within 1" of the Convex...
|
|
Forum: Electrical
23-02-2016, 20:31
|
|
Replies: 22
Views: 1,987
Re: HELP NEEDED: Solenoids not firing
It is not impossible that the coil of the solenoids are blown. Are you sure they are 24V and not 12V - it is printed on the solenoid. Do you have another solenoid to try?
If you stop your code...
|
|
Forum: General Forum
23-02-2016, 20:10
|
|
Replies: 20
Views: 2,269
Re: A question about 8in Bumpers...
Short answer YES! (and the rules do directly address your situation)
The common confusion is that the rules refer to the "frame perimeter". They should have called it something else like robot...
|
|
Forum: General Forum
23-02-2016, 09:40
|
|
Replies: 34
Views: 4,254
|
The GDC made something easier??? Link or it didn't happen! - JesseK [more] 
