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montecarl

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montecarl
·2 maanden geleden·discuss
I had a raspberry pi 3a+ and the old raspberry pi touchscreen laying around. So I'm writing a custom dashboard for it using Rust/Slint[1]. It directly uses opengl without any display manager/window system. It mostly talks to home assistant. Right now, when I start a 3d print, it automatically switches to a view with live camera of the printer and some stats. I can monitor the status of my washer/dryer so I know when they are done (using cheap TP-Link Tapo smart plugs[2]). My favorite thing it does, is if any motion is detected on my Ring cameras, it just automatically pulls up that live feed. Took a little work to get decent playback performance but the pi 3a+ has hardware h264 decoding.

Its nice, overall, to have a little dedicated touchscreen on my desk that I can easily tweak to display whatever I want. Its silent and low power.

[1] https://slint.dev/

[2] https://a.co/d/044MIM3t
montecarl
·2 maanden geleden·discuss
They also did this for the original steam controller, which I used a lot. When the back panel broke (its a trigger and battery cover) I was able to 3d print a replacement that has held up great.

https://steamcommunity.com/games/353370/announcements/detail...
montecarl
·3 maanden geleden·discuss
I get it! Thank you that is genius.
montecarl
·3 maanden geleden·discuss
I really want to know how he solved this problem, which I also face:

>last year i bought a Rodecaster Duo to solve some audio woes to allow myself and my girlfriend to have microphones to our respective computers when gaming together and talking on discord in the same room without any echo
montecarl
·6 maanden geleden·discuss
When I read this, I thought that the author would be calculating the derivative of the potential energy with respect to nuclear charge for some reason. Here, the derivative being evaluated appears to be the atomic forces, using jax magic, as opposed to the standard Hellmann-Feynman theorem approach.

Calculating the derivative of the energy with respect to nuclear charge would be fun, as it would let you perform some type of "alchemy" smoothly changing from one element to another. I'm not sure that has any practical use.

I read a paper a while back doing something alchemical that I guess this reminded me of: https://pubs.aip.org/aip/jcp/article-abstract/133/8/084104/1...
montecarl
·8 maanden geleden·discuss
I think that the audio we are listening too is from some ground recording station that isn't necessarily near the airport. We aren't listening to a recording of what the pilots heard or what air traffic control hears.
montecarl
·9 maanden geleden·discuss
I can't believe how affordable Hetzner is. I just rented a bare metal 48 core AMD EPYC 9454P with 256 GB of ram and two 2 TB NVME ssds for $200/month (or $0.37 per hour). Its hard to directly compare with AWS, but I think its about 10x cheaper.
montecarl
·6 jaar geleden·discuss
This is nothing but message passing. In the high performance computing world, MPI is the standard scheme for running massively parallel calculations. While Python's pickle may not be the highest performance serialization scheme, it is pretty fast and transparently handles most objects you can throw at it. It certainly does not cover all the same use cases as threads and as you point out shared data it is much easier to use theads.