Collaborate Disseminate
I’m trying to find software for my business and I don’t know what it’s called that I’m even looking for. I’m trying to create barcodes quickly from a pad that I can send to a wireless printer, again, quickly, and then once they are scanned… Continue reading Help with barcode creator software
Featured in many sci-fi stories as a quicker, more efficient way to record and transfer information, barcodes are both extremely commonplace today, and still amazingly poorly understood by many. Originally designed as a way to allow for increased automation by allowing computer systems to scan a code with information about …read more
Continue reading The Barcode Revolution: Welcome To Our Automated World
One of our favorite things about the rise of hobbyist development ecosystems such as the Arduino is that it’s now possible to make a MIDI controller out of almost anything, as long as you have the the shields and the dedication. We’re glad that [James Bruton] takes the occasional break …read more
Last year, we saw quite a bit of media attention paid to blockchain startups. They raised money from the public, then most of them vanished without a trace (or product). Ethics and legality of their fundraising model aside, a few of the ideas they presented might be worth revisiting one …read more
Continue reading Yes, You Can Put IoT on the Blockchain using Python and the ESP8266
The questions is pretty self explanatory.
One particular solution that I had in mind was encrypting the number written directly below the bar code and using that encrypted number to generate the bar code. Is it possible for… Continue reading How can make sure no one re-generates my barcodes using the numbers written below the code
We have a client who hosts an event, with a tight budget, that uses lanyarded Photo-ID cards with barcodes on them. The barcodes are used to gain access to various areas at the event.
We were thinking of proposing a hashed code (currently… Continue reading Are there unphotographable, but scannable ID cards?
We never really thought about it before, but a traditional barcode or QR code is pretty two dimensional. A 3D barcode sounds like marketing hype but the JAB (Just Another Barcode) system adds a third dimension in the form of color.
Traditional barcodes assume you have a pretty crude sensor, but a color camera now days is no big deal, so why not take advantage? The JAB system specifies two types of symbols: a master symbol and a slave symbol. A master symbol has four finder patterns at the corner. Slave symbols dock to a master or another docked slave. …read more
Assume we want to protect a document against manipulating and forging. So, we encode some sensitive information of the document and store it in a QR-code inserted in the document.
Can we be sure that an attacker is not able to change and … Continue reading How resistant are barcodes and QR-codes against attempts to change stored data?
I plan on doing a “ticketing” system, where a user would buy a “tour ticket” online. The part that I’m puzzled about is: After they buy, what mechanism to use to verify the ticket?
I’ve been looking at how platforms like Eve… Continue reading Using a simple 5-character pass for event vs. QR/barcode
Woodworking is the fine art of turning dead tree carcasses into precision instruments. That means breaking out the saws and chisels and making many, many precise cuts over and over. If you have a table saw, every problem becomes a piece of wood, or something like that, and we’ve seen some fantastic jigs that make these precision cuts even easier. We’ve never seen something like this, though. It’s a box joint jig for a table saw, it’s automated, and it puts barcodes on boxes.
[Ben] built this box joint jig a few years ago as a computer-controlled device that slowly …read more