johschmitz's comments

johschmitz | 2 months ago | on: Comma openpilot – Open source driver-assistance

The control messages are transmitted via CAN bus

https://en.wikipedia.org/wiki/CAN_bus

The exact message content and protocols are reverse engineered.

Some cars use FlexRay instead of CAN bus but that has only experimental support.

johschmitz | 2 months ago | on: Training my smartwatch to track intelligence

Since this talks about sleep quality I want to add something that was almost unknown to me for over 30 years. Smartwatches AFAIK don't have CO2 sensors. It seems to me though, that that would be extremely useful for sleep quality tracking. I have just a couple of years ago found out that CO2 levels are having the highest impact on my sleep quality besides temperature. I can highly recommend getting a CO2 sensor to get a good feeling for that effect. Also understand how much air is available in your room and how much CO2 your body produces per hour. I totally underestimated this until I was able to measure it. In a small sleeping room with closed doors the amount of CO2 will reach unhealthy levels at the end of the night.

johschmitz | 8 months ago | on: MCP-B: A Protocol for AI Browser Automation

At the end of the day you often need to consider the energy efficiency of a system which is also reflected in the cost of operating it. For use cases where this is relevant the suggested MCP approach potentially offers large benefits compared to what's probably meant here by "AI". However, the disadvantages of public access discussed in other threads need to be considered as well, therefore, I expected this only to be used for certain niche use cases. Testing and retro fitting non-public websites come to mind.

johschmitz | 10 months ago | on: What makes a good engineer also makes a good engineering organization (2024)

I never hated on Signal, on the contrary I recommend it too many people but I can say that the energy consumption on Android is in many cases abysmal for multiple years now and related issues in the Github issue tracker are being ignored. This is for me unacceptable for someone claiming to build high quality software and accepting my donations.

johschmitz | 1 year ago | on: MomBoard: E-ink display for a parent with amnesia

Reminds me of https://www.fieggen.com/shoelace/grannyknot.htm

I wonder if what you describe is kind of the reason for this.

johschmitz | 1 year ago | on: Show HN: I've spent nearly 5y on a web app that creates 3D apartments

Nice.

Feature request: In the top/overview view I would like to be able to tap on each room and then the pivot point should move to the center of that room. After a double tap or tap on the top view button the pivot point should move back to the apartment center point. This will help zooming easily into each room from above.

johschmitz | 2 years ago | on: Flowblade: Open-source video editor for Linux

You might want to try out the one build into Blender: https://www.blender.org/features/video-editing/

johschmitz | 2 years ago | on: 40 years ago yesterday Air Canada Flight 143 ran out of fuel mid-flight

I like this one much better https://youtu.be/RKfG3lWCZ80 at 4:20 onwards. Also explains the difference between slip and skid.

johschmitz | 2 years ago | on: Teardown of the TM4313 GPS Disciplined Oscillator

I did this back in the day using a ublox LEA-M8F module for my PhD work following the instructions posted here: http://www.opendigitalradio.org/lea-m8f-gpsdo I also experimented with RTK which this module is capable of. Now there's probably a more up to date ublox module available which could provide even better results using multi frequency GNSS etc.

johschmitz | 4 years ago | on: Ask HN: What Apple alternatives are you switching to?

ASUS Zenfone 8. One of the very few relatively small Android phones with 5G connectivity, good camera and a flagship CPU (Snapdragon 888) and not way too expensive.

johschmitz | 4 years ago | on: Show HN: Tara 2.0 – Fast Jira alternative with automation based on Git events

Why not charge based on typical "packages" containing a certain number of interactions with the service?

johschmitz | 4 years ago | on: Show HN: Imba – I have spent 7 years creating a programming language for the web

True, it doesn't seem to work so well, see screenshot: https://pasteboard.co/KgkhOEo.jpg

johschmitz | 4 years ago | on: Unix – The Hole Hawg of Operating Systems (1999)

Linux Mint is that "windowing environment that simply works" for me. I've been putting it on my dads computer for about 10 years now (he is turning 66 now) and it was always working very well with minimum support. Definitely much better than Windows with its reboot for each update nightmare.

johschmitz | 4 years ago | on: Google fined €100M by Italian antitrust over Google Play abuse of dominance

How I understand it he is saying Google is willing to pay for "being wrong" or rather "behaving in certain ways". Now it is just kind of a fee and both sides are happy. Maybe not the perfect situation for the customers but between the two parties and with the current legal framework the deal makes sense. Doesn't it? Should we be surprised about any of the two parties optimizing their position within the given constraints? I think it is quite clear that if another outcome is desired the constraints need to be changed.