Live data from Hacker News

Ask HN: What did you find out or explore today?

news.ycombinator.com

11–20 of 446 posts

Re: Ask HN: What did you find out or explore today?

#11
post #2

I found out today that the location header of an HTTP redirect can be a tel:+ URI and phone's will actually ask you whether you want to call that number.

Links can have that as their href and it will also work as you'd expect. It's the telephone equivalent of the more well-known mailto: scheme

Re: Ask HN: What did you find out or explore today?

#13
I found out I can automate my 5,12kWh house battery through local-only RS485 connection, and directly setting registers using ModbusTCP from Home Assistant. I then drafted an automation with hysteresis and damping that tries to aim for Net-Zero export/import (pv surplus/grid). It appears to work!

Re: Ask HN: What did you find out or explore today?

#15

I found out I can automate my 5,12kWh house battery through local-only RS485 connection, and directly setting registers using ModbusTCP from Home Assistant. I then drafted an automation with hysteresis and damping that tries to aim for Net-Zero export/import (pv surplus/grid). It appears to work!

The deranged thing about RS485 and modbus is it's old cheap and just works.

Re: Ask HN: What did you find out or explore today?

#16
I’m reading Domain Driven Development and learning why so many of my projects have been tough to maintain.

I also recently learned that you can get ancient coins for very little money if you don’t care about resale value or need them to be in pristine condition. I bought some coins from kingdoms that I’d never heard of. Many are thousands of years old! It’s fun holding a piece of history like that.

Re: Ask HN: What did you find out or explore today?

#18
I've read the adverserial attack paper, and I'm currently implementing a captcha based on images that have masks on them so that any LLM agent with a visual model will classify it wrong.

The idea is to use something like a slider that shows different images combined with a memory task, like "find out the pair of images" and then offer maybe a text input field where the user has to write 1,2,3 or something similar with the image numbers to pass the captcha.

The tldr is that I'm abusing the famous panda image that's classified as a gibbon as a technique to build a bot captcha.

Post reply on HN