Dude did you even read your post ? None of the sentences make fucking sense
A PCB business card with a batteryless LED, powered by the phone that taps it
21–30 of 33 posts
Re: A PCB business card with a batteryless LED, powered by the phone that taps it
#22Earlier quoted context omitted.
That made the post? Everything in your comment is in the post, AI summaries aren't very popular. > I designed the whole board as code, which I’d recommend to anyone who, like me, finds dragging traces around with a mouse maddening. KiCad—the free PCB tool—has a Python API, so the entire card is generated by a script.
My guess is that the whole project including the selection of chips was made by an AI.
My guess as well. I don't like it when humans silently pass off LLM writing as their own.
I also don't like it when humans silently pass off LLM work as their own.
Prompting is not the same as doing the work. There are ways to genuinely collaborate with LLMs, but if someone silently takes full credit for work generated by LLMs, my assumption is they probably vibe coded it.
Re: A PCB business card with a batteryless LED, powered by the phone that taps it
#23We just did this https://news.ycombinator.com/item?id=49478426 this is starting to become the risc v of fpga resumes. It's certainly work and making anything that exists and works even somewhat is commendable but it's getting played out
The most interesting open source example of this I can think of is Ben Krasnow's (and friends') temperature reporting magnetic stir bar:
https://www.youtube.com/watch?v=nh1SIfipQs4
The temp sensor and transceiver PCB are cast into urethane and the coil gets installed into the hotplate. In theory lets you do all kinds of interesting stuff like monitoring when you can't get a wired probe into the vessel, or to drive a control loop that actually monitors the liquid and not the plate temperature.
Re: A PCB business card with a batteryless LED, powered by the phone that taps it
#24is it possible to do this with a wearable? say jewelry? i've been fascinated with the whole digital to physical world dislocation and this inspires me to dust off an old idea of around the world "collecting" passport stamps but the only way to actually collect them is by a physical tap. similarly, i can see jewelry that lights up upon being tapped by a phone or together. fun
"is it possible to do this with a wearable?"
Yes, but there are limits on the minimum size. The smallest off the shelf tag I have seen is about 10mm diameter disk sticker.
Re: A PCB business card with a batteryless LED, powered by the phone that taps it
#25That's pretty cool!
Re: A PCB business card with a batteryless LED, powered by the phone that taps it
#26is it possible to do this with a wearable? say jewelry? i've been fascinated with the whole digital to physical world dislocation and this inspires me to dust off an old idea of around the world "collecting" passport stamps but the only way to actually collect them is by a physical tap. similarly, i can see jewelry that lights up upon being tapped by a phone or together. fun
"is it possible to do this with a wearable?" Yes, but there are limits on the minimum size. The smallest off the shelf tag I have seen is about 10mm diameter disk sticker.
6eah you can make the chip tiny but not the coil, it needs to capture enough energy from the field.
There are 3x3mm NFC chips but their read range is 2mm..
Re: A PCB business card with a batteryless LED, powered by the phone that taps it
#27A few months ago some dude offered a very fancy business card: it looked really gorgeous and all tech. Don't remember all the details but it was shiny and had tiny components etc.
So I took it and was going to put me in my wallet and the dude interrupted me and say: "No, no, you can't have it, I've got only one, you need to scan the QR code".
I found that incredibly cheap ; )
P.S: and also I don't scan random QR codes.
Re: A PCB business card with a batteryless LED, powered by the phone that taps it
#28Next stage EInk card having a personalized Information and / or pitch..
If you ever build that deck, Joe, call me?
Re: A PCB business card with a batteryless LED, powered by the phone that taps it
#29Earlier quoted context omitted.
My guess is that the whole project including the selection of chips was made by an AI.
My guess as well. I don't like it when humans silently pass off LLM writing as their own. I also don't like it when humans silently pass off LLM work as their own. Prompting is not the same as doing the work. There are ways to genuinely collaborate with LLMs, but if someone silently takes full credit for work generated by LLMs, my assumption is they probably vibe coded it.
Plus, I spend my free time expending effort to consume human generated content. I’m okay with slop someone pays me to deal with, but don’t expect people to read your hobby related post when you couldn’t be bothered to write it.
Re: A PCB business card with a batteryless LED, powered by the phone that taps it
#30Earlier quoted context omitted.
[flagged]
They didn't even get a good photo of the final product... The only shot I saw was "while I was writing them" why not show what it looks like while in use?
https://wilsonharper.net/projects/businesscard/
This is the post from some days ago that I thought I was commenting on - sorry for the fuckup, please accept this replacement story - mea culpa.