Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Ultrathin business card runs a fluid simulation

github.com

Post reply on HN
Print view View original

151–160 of 234 posts

Re: Ultrathin business card runs a fluid simulation

#151

Post by homefree »

mardef wrote: post #144
homefree wrote: post #89

Earlier quoted context omitted.

It’s better than that because it includes the content - more akin to searching and putting the result you find in the comments as a guess. The anti AI HN comments are the new anti Bitcoin - your replies are much worse than someone sharing the gpt output.

These aren't anti-AI comments. We're on a forum talking person to person. It is antithetical to just spout "AI said this" repeatedly when the entire point of this place is human discourse. It's like having a group conversation in person and one member of the group contributes nothing but things they read off Google.

I'd much rather talk to an AI than have this sort of human discourse.

Re: Ultrathin business card runs a fluid simulation

#152

Post by phirks »

hypercube33 wrote: post #24
ChrisMarshallNY wrote: post #9

Very nice, but probably a bit too expensive to just hand out. I knew a chap that had a similar hardware business card (I don't remember exactly what it did, but it wasn't as cool as this one). I remember that his card was pretty scuffed up, and he insisted I give it back, after he handed it to me. Bit weird.

I half expected this to have a button/mode to show custom QR codes...

I tried, that's why it's 21x21. Still haven't managed to get it to read.

Re: Ultrathin business card runs a fluid simulation

#154

Post by SequoiaHope »

Beautiful design! I want to say as a maybe helpful review point that I see overlapping silk in a few spots. Ideally it would be nice to clean that up, possibly removing all designators which for my personal preference would work, but some people might like to see those. Also I would choose a more playful font for the back text but I like playful. This is an excellent project, nicely done! I’m doing a lot of RP2350 LED work right now, I’ll have to see if I can run your code on the pendant I am designing.

Re: Ultrathin business card runs a fluid simulation

#155

Post by postcert »

fennecfoxy wrote: post #52
catapart wrote: post #37

Earlier quoted context omitted.

Ha! That's pretty cool. My first thought with this card was that it could be "gamified" into something that kids would probably love. A clique-y, social thing where kids could "pour" some of their fluid into another's card, with NFC or something. User preference colors that don't change when "poured" could help indicate how many different people have interacted with your card. But enough spitballing. There's no kille…

Stuff like that is dead now btw (yes, it makes me sad too). Kids have iPhones; the idea is great but can just be an app. Which tbf makes more sense because you get the benefit of imu & everything else for that behaviour. Remember those little LCD cube block toys with the stick dudes that lived in 'em, then when you plug 'em together they interact? Those were the days.

Those little cube world blocks were neat: https://corporate.mattel.com/brand-portfolio/cube-world

Maybe I grew out of the age range or maybe the whole market of silly knick-knacks has died out but they definitely drove my interest in all things electronic.

Re: Ultrathin business card runs a fluid simulation

#156

Post by [deleted] »

JKCalhoun wrote: post #70
rwmj wrote: post #6

Would love to see more information about how it was built. He must have worked with a company that can do the surface mount assembly?

Yeah, wondering how the LEDs were aligned so precisely. Some kind of silicone grid-like jig to hold them while the solder reflows? Or is it just pick & place robotics doing what they do with precision?

[deleted]

Re: Ultrathin business card runs a fluid simulation

#157

Post by phirks »

augergine wrote: post #145
NoSalt wrote: post #143

Earlier quoted context omitted.

I only mention this because this was posted here at, approximately, 08:00 EST 2028-08-08, and posted on Reddit at, approximately, 00:00 EST 2028-08-08.

They’d rather post there than here. https://www.reddit.com/r/embedded/comments/1mkkd4z/my_busine...

[dead]

Re: Ultrathin business card runs a fluid simulation

#160

Post by sneak »

mritchie712 wrote: post #22
ChrisMarshallNY wrote: post #9

Very nice, but probably a bit too expensive to just hand out. I knew a chap that had a similar hardware business card (I don't remember exactly what it did, but it wasn't as cool as this one). I remember that his card was pretty scuffed up, and he insisted I give it back, after he handed it to me. Bit weird.

[flagged]

As someone whose own cards are around $5 each, this is more than workable if they are actually driving business.
Post reply on HN