NVIDIA Jetson TX1

[marshall]

Originally Posted by bhsrobotics1671

We have the same question. The box shows it's rated for 5.5-19.6v. We were having some issues running it on 12v last night. Just curious to see if other teams have found another solution already?

It will run off of 12v. It will run down as low as ~6V without causing serious performance issues.

We have yet to solve the issues with the TX1 and how sensitive it is to voltage fluctuations. The board will power down at the slightest breeze of a voltage drop from our experiments... we're actively investigating workarounds.

[bhsrobotics1671]

Originally Posted by marshall

It will run off of 12v. It will run down as low as ~6V without causing serious performance issues.

We have yet to solve the issues with the TX1 and how sensitive it is to voltage fluctuations. The board will power down at the slightest breeze of a voltage drop from our experiments... we're actively investigating workarounds.

Yeah, seems to be the issues we are having. In your testing does the TK1 work fine with no issues?

[Tom Bottiglieri]

Originally Posted by Nemo

How does one deliver 19V power to a TX1?

Edit: Better question: how low can the voltage go and still run the TX1 development kit?

We have used these to boost our battery supply voltage for voltage sensitive electronics. http://www.amazon.com/DROK-Automatic...rds=buck+boost

Not sure of the power specs on the TX1, but it seemed to work well with the TK1.

[bhsrobotics1671]

Originally Posted by Tom Bottiglieri

We have used these to boost our battery supply voltage for voltage sensitive electronics. http://www.amazon.com/DROK-Automatic...rds=buck+boost

Not sure of the power specs on the TX1, but it seemed to work well with the TK1.

Thanks Tom!
I'm assuming there are no rules preventing the use of this on the bot for competition that you are aware of?

[lucas.alvarez96]

Has anyone made or has a CAD of a case for the TX1? We're going to use the board on our bot and decided that the necessary protection is a must.

[bhsrobotics1671]

Originally Posted by lucas.alvarez96

Has anyone made or has a CAD of a case for the TX1? We're going to use the board on our bot and decided that the necessary protection is a must.

We have it still mounted to the black board it comes mounted to, then we mounted that with brackets that are riveted onto that board with a piece of lexan guarding it. I'll see if I can get a picture later, but for us we did nothing special.

[marshall]

Originally Posted by lucas.alvarez96

Has anyone made or has a CAD of a case for the TX1? We're going to use the board on our bot and decided that the necessary protection is a must.

Enjoy: http://www.thingiverse.com/thing:1217209

[lucas.alvarez96]

Originally Posted by marshall

Enjoy: http://www.thingiverse.com/thing:1217209

After 3 hours struggling with the massive STP file of the TX1 board supplied with NVIDIA and a laggy computer, I was starting to get something decent for 3D printing. Seeing this post and link has probably been the most bittersweet sensation during the season. Oh well.

No but really, thanks Marshall!

Would there be any negative effects if we mount the board upside down? I want to avoid having the hole for the fan exposed to the world (AKA metal shavings from last minute repairs on the robot)

[Nemo]

We ended up buying a 12V to 19V converter:
http://www.amazon.com/gp/product/B00M3SR51Y?psc=1&redirect=true&ref_=oh_aui_detailp age_o02_s01


I haven't dug into the rules closely enough to find anything that rules those out, but I suppose I'll do that while I'm studying up for robot inspecting.

We might end up using our mentor's TK1 instead. It's smaller, lighter, runs on 12V, and it talks to the cameras we bought unlike the TX1.

[marshall]

Have any teams had success with getting the TX1 powered via the robot?

I'm working on a write-up that describes what we have done and I can tell you it's not as simple as a 12v to 19v converter...

[bhsrobotics1671]

Originally Posted by marshall

Have any teams had success with getting the TX1 powered via the robot?

I'm working on a write-up that describes what we have done and I can tell you it's not as simple as a 12v to 19v converter...

Have you tried the buck boost that Tom linked?

[snekiam]

Is the TX1 significantly better for simple OpenCV hardware acceleration than a TK1? I am looking at how to get vision done for our team, and don't want to spend the extra money if we don't have to. Our original plan was to use a raspberry pi, but the processing power seemed to just be too low.

[marshall]

Originally Posted by bhsrobotics1671

Have you tried the buck boost that Tom linked?

We tried similar without any luck... The TX1 really wants a constant voltage.

We were able to get some help from Nvidia and the following modifications to the the TX1 actually seem to work nicely:

https://devtalk.nvidia.com/default/t...24595/#4824595

We now have the makings of a TX1 on our robot with something special in store for keeping it powered that I'm sure is going to draw some looks from inspectors. More details to come after our upcoming event.

Originally Posted by snekiam

Is the TX1 significantly better for simple OpenCV hardware acceleration than a TK1? I am looking at how to get vision done for our team, and don't want to spend the extra money if we don't have to. Our original plan was to use a raspberry pi, but the processing power seemed to just be too low.

Yeah, this board is not for you. The TK1 is definitely better in terms of CPU/GPU power than the Pi but honestly, stick with the Pi and the basic examples until you get them working then move on from there.

[RyanShoff]

Which change did you do? Disable the circuit or change the capacitors?

I think we are just going to stick with the tk1 this year.

[marshall]

Originally Posted by RyanShoff

Which change did you do? Disable the circuit or change the capacitors?

I think we are just going to stick with the tk1 this year.

We changed the capacitors.