blutack

Joined 14 years ago

Karma

1,519

Submissions

210

Member since

Jul 7

View on Hacker News

Recent submissions

Flip Fluid on Flip Dots mitxela.com

398 blutack 1 month ago 26 comments

Comment · 3 months ago

Just in case it helps anyone else, tio (https://github.com/tio/tio) is a great featureful alternative to picocom.

Comment · 3 months ago

I don't think your assessment of the DJI Mini thing is very fair. Sounds like they would be more than happy to accept a pull request and indeed there is an open one the maintainers are helping get merged [1].

Shame that the new workflow doesn't work well for your particular camera and setup - but I would encourage other people to try it, because it works great for mine.

  We know :-) It very much seems there is no dt developer currently interested in this sort of correction, i suppose none are using such devices.

  Just two reminders:

  Such "missing support for my camera" started me to get into darktable code. A lot of code to be reused is there, there are already some hints, just go ahead :-)
  Some comments above i suggested something ... :-)

1: https://github.com/darktable-org/darktable/pull/20467

Comment · 9 months ago

Great project!

If you want a hardware upgrade it's actually reasonably inexpensive to build something direct drive (which is how the real sub-30kg ones work). This gives you many advantages over the plastic gear type including a much faster response time and more accurate positioning.

Look for "gimbal motors", basically a large skinny pancake brushless motor. Combine those with a storm32, simplebgc or odrive and a magnetic encoder. A 3D printer will help.

You can also have a look at low cost suppliers of cheap UAV stuff if you want something fully integrated for you. A basic Gremsy, Viewpro or Siyi isn't that much more than your Amazon thing. Various software bugs but they can be worked around. The DJI units can sometimes be had used and some of the protocols have been RE'd already.

Open firmware for the Xteink X4 e-paper reader github.com

2 blutack 9 months ago 0 comments

Comment · 11 months ago

Presumably also open circuit not rebreather given this was mid 90s. It's a pity the article doesn't detail their dive plan, the gas quantities must have been staggering.

Nowadays this type of diving would be done using an eCCR (and backup open circuit), where some software on a microcontroller controls the amount of oxygen in a breathing loop. A scrubber (hopefully) removes the CO2. Changing the gas mixture as you go is required to reach these sorts of depths because oxygen becomes toxic at pressure, and gas density itself can cause issues with breathing.

Comment · 1 year ago

Luckily it's supported by Valetudo so it can go back to work.

https://valetudo.cloud/pages/general/supported-robots.html#i...

Comment · 1 year ago

This might be a US/EU difference. It's pretty popular in the EU still, although some of the market has been taken by various Simulink to C tools.

Every Rolls-Royce gas turbine FADEC runs ADA binaries on a custom processor [1].

It's also used extensively at Airbus. Lots of DO-178C (safety critical aerospace).

1: https://www.his-conference.co.uk/session/visiumcore-a-high-i...

Comment · 1 year ago

Garmin do one called Varia

Comment · 1 year ago

RevK's blog has a lot of interesting posts on it.

https://www.revk.uk/

He also runs an excellent ISP in the UK called AAISP which I can highly recommend (https://www.aa.net.uk)

AAISP build their own core & customer networking devices/routers from scratch (not Linux based) in the UK. They are fascinating to use - a completely different evolutionary tree to any other networking kit I've used. Some unique features.