Interested why the author would fuzz out the phone number on their business card?
My Business Card Runs Linux
81–90 of 415 posts
Re: My Business Card Runs Linux
#82Impressive work. But I'd ask for a few leds with some easy to use method (can they be a device, like dev/led1 ?). The Arduino has one in port 13 (usually), and it is very useful for useful for minimal projects, like a blinking led.
(Bonus points for a few leds, so you can show the Knight Rider animation, or a 7-segment display.)
Re: My Business Card Runs Linux
#83While it's a fascinating project I'd have some security concerns about plugging someone's USB business card into my computer.
Is that really the responsibility of the person making the card? This is the responsibility of the creators of the USB hardware, firmware, motherboard firmware, electrical design, OS developers / driver developers. It should be safe to plug in a USB device by default
should be safe, in theory, sure. But in practice?
Re: My Business Card Runs Linux
#84I think it's fantastic. I don't typically hand out a physical business card often. So the recipient would be someone that I would feel would generally find the project exciting and intriguing, and it provides a great conversation piece.
It's simple enough to discuss it briefly and mention that for any security-conscious individuals, they can check out the GitHub that's stated on the card and see the code and still have the same insight if not more than if they had just plugged in the device.
For anyone else, the information they need from a business card is all still nicely stated, in a design that's enticing even without functionality. The production cost is easy to justify with the chance of achieving whatever your goal may be, whether it be securing a job offer or generating new business.
Re: My Business Card Runs Linux
#85Earlier quoted context omitted.
OTOH, a security conscious engineer could exploit this to have the business card call home and automatically block communications from the company so one does not waste time with them ;)
And just like that, you committed a felony.
Probably your second today, to be fair.
Re: My Business Card Runs Linux
#86The author: did you think about creating a course on embedded hardware and software design and launch a funding campaign on Kickstarter. I would definitely help fund it.
Re: My Business Card Runs Linux
#87I really want to learn being able compile and solder an embedded system but I don't know where to start. Assuming I have the parts, tools and materials, how can I learn where to put capacitors/resistors etc in a custom design? What kind of simulators are good at testing these ideas without needing to waste expensive components? What was missing in my Computer Engineering curriculum which paints those circuit parts (e…
Start with a simple, known-good design, then figure out why each part is there.
After you get some experience reverse engineering existing designs, start trying to build something simple. Thinking blinking lights without a processor.
Warning: Embedded tools are not user friendly. Because most people who use them, use them all the time.
Eagle has a free tier. I think it's the EDA tool we used in my CS/CSE courses.
There are open source alternatives, but they had even rougher edges a decade ago when I was using them.
https://learn.sparkfun.com/tutorials/using-eagle-board-layou...
Re: My Business Card Runs Linux
#88901, I live in the same city as this guy!
Re: My Business Card Runs Linux
#89This is cool as it showcases his embedded engineering prowess. Years of startup meets[1] have left a bad taste in mouth for the business cards. I've seen people exchange business cards ceremoniously, only to give a missed call to each other immediately. Business cards are a waste of money, paper and I don't want to get started on the plastics. I honestly thought that proliferation of NFC in smartphones would help to…
I find that business cards are still helpful to get the spelling of people's names right - otherwise you have to either hand your phone over to the other person and have them type their name into your phone, or at least have them text you the spelling, which can be awkward to ask for and anyway has more friction than accepting a business card. Also, sharing WhatsApp contacts makes me uncomfortable. There's various fi…
I agree with you on both the points.
One more concern for me is the utility of a business card is just once, if you want to contact them in future you'll store the details on your phone and when you put the card in the pocket it likely directly ends in the trash.
As for WhatsApp or other chat app 'contact' sharing it is not limited to business/professionals and so it has become a norm in several countries.
Re: My Business Card Runs Linux
#90Earlier quoted context omitted.
> instead of USB And how would you power the card?
I wonder if tiny solar cells covering the entire surface of the card would be enough to power it. Not sure if the wifi module can be powered with < 1 watt of electricity though.
How about a combination of solar and an ultra thin lithium ion battery? Finding a small, thin solar cell cheap enough is the trick I think... http://www.phdenergy.com/products/rechargeable-batteries/ult...
https://www.digikey.com/product-detail/en/powerfilm-inc/MP3-...
I haven't done any calculations to see if these would provide enough power or not...