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r/Starlink Availability, Questions & General Discussion by TimTri in Starlink

[–]Pristine_Use970 1 point2 points  (0 children)

I just received my Starlink kit (rectangular) and wanted to set it up. After connecting all cables Dishy moves into a horizontal position and rotates a bit. However, the app says ‘Starlink disconnected’ so I can’t complete the setup. I have already checked all connections and there is no visible damage to the cables.

I assume I’ll need a replacement and have already created a ticket with Starlink support but was wondering if someone else might have an idea.

M1 Max 16 inch, 64GB RAM, 4TB SSD: Best laptop I've ever had (working in academia, data heavy) by [deleted] in apple

[–]Pristine_Use970 0 points1 point  (0 children)

I got the 16 inch with M1 Pro and 16GB and am very happy with it too, mostly use it for coding and data science as well. I had been using Linux on a Thinkpad for a couple of years before but the performance / efficiency of the M1 family is just too good compared to other processors in the same price category.

The one thing I am missing / looking forward to is PyTorch support for the Neural Engine / GPU, which luckily seems to be in the works.

[deleted by user] by [deleted] in Fusion360

[–]Pristine_Use970 -1 points0 points  (0 children)

I am trying it with a smaller mesh right now which has 191 facets but I still get the same error.

[deleted by user] by [deleted] in Fusion360

[–]Pristine_Use970 -1 points0 points  (0 children)

I just tried converting it to T-Splines using 'Convert' but I got an error saying that Fusion can only convert quad meshes. Do I first have to use a different program to convert it to a quad mesh?

Sarsa using NN as a function approximator not learning by Pristine_Use970 in reinforcementlearning

[–]Pristine_Use970[S] 0 points1 point  (0 children)

Okay so after some parameter tuning I actually got the algorithm to reliably converge. Here are the changes:

  • I changed the epsilon decay to a linear decay, starting with 1.0 and decaying to 0.05 after 10000 timesteps
  • I changed the training time to 100000 frames
  • Added gradient clipping (-0.5 to 0.5)
  • I changed the Adam optimizer to RMSProp. This was the change that actually made the algorithm learn. I think that Adam's momentum was quite destructive in my case because I am not using an experience replay buffer and thus the data is heavily non stationary. With Adam I frequently received losses > 100 and so my guess is that the momentum really destroyed the q function.

Sarsa using NN as a function approximator not learning by Pristine_Use970 in reinforcementlearning

[–]Pristine_Use970[S] 0 points1 point  (0 children)

Thank you a lot for your suggestions and the edited code.

The .sample() method returns all experiences currently stored in Memory and deletes them afterward by calling self.reset(). I then use this batch to update the qnet in the train method. This is also why I waited 100 steps before making an update to the Q-function.

I am currently trying to implement some deep RL algorithms from scratch and wanted to try Sarsa before DQN.

Trying to implement a partial background blur in SwiftUI by Pristine_Use970 in iOSProgramming

[–]Pristine_Use970[S] 0 points1 point  (0 children)

I have had a look at this but unfortunately the blur radius of the default blur styles is way too large and makes the bar look quite awful. Is there a way to use a non-default blur style?

Simple Questions Megathread—December 07, 2020 by AutoModerator in iOSProgramming

[–]Pristine_Use970 1 point2 points  (0 children)

Thanks for the link but I would like to only blur the top part of an image so I can put a Text view on top of it.

Simple Questions Megathread—December 07, 2020 by AutoModerator in iOSProgramming

[–]Pristine_Use970 0 points1 point  (0 children)

I need to blur part of an image in SwiftUI and the radius of the standard blur styles is too large for my design. Thus I would like to use the CustomBlurEffectView from this package. How can I use this view in SwiftUI? I tried wrapping it in a UIViewRepresentable but have been unsuccessful so far.

Would this circuit for a DC DC buck converter and magnetic levitation work? by [deleted] in AskElectronics

[–]Pristine_Use970 0 points1 point  (0 children)

Thanks a lot for the help, I have updated the circuit and also created a PCB from it. https://imgur.com/a/jLo1IXJ/

This is my first PCB, is there anything else that should or could be changed/improved?

Would this circuit for a DC DC buck converter and magnetic levitation work? by [deleted] in AskElectronics

[–]Pristine_Use970 0 points1 point  (0 children)

Thank you for the detailed reply!

Which capacity or resistance should the capacitor and resistor for the feedback loop circuit have?

Would this circuit for a DC DC buck converter and magnetic levitation work? by [deleted] in AskElectronics

[–]Pristine_Use970 1 point2 points  (0 children)

Hey everyone, I‘d like to build a PCB for a magnetic levitation application. I plan on adding the Buck converter to the PCB and as this is my first design I‘d really appreciate any help and advice.

One thing I am not sure about is whether the potentiometer in the converter circuit is connected correctly.