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Search - "barcode"
I accidentally created a bug that became an amazing feature at my last job.
It was for a program to read barcode tickets (we created software and web solutions for events), and to register the barcode sacnners to the computer I had to do some magic with USB-detection since it was not specified which brand the scanners would be (so no SDK would be available).
When the scanner was plugged in it would create its own thread so it wouldn't interfere with the UI of the program when it was reading/sending data.
Somehow I messed up with the thread termination for new scanners so it would accept to connect more than one scanner and it would work flawless since it was its own thread in the program.
When I tried to think out a solution for multiple scanners when planning it I got a headache and thought that's something for later. Turned out alright in the end apparently.8
Coolest project: I once worked for a customer who hosted an exhibition for a few thousand visitors in a big event arena in Stockholm.
They didn't want to use the existing ticket reading system on the arena so I had to build my own application compatible with barcode scanners (they said this about one week before the event).
It wasn't a complicated application to dev but with the tight deadline and no time to actually stress test it, it was the coolest thing to see hundreds of people streaming through the ticket station flawlessly.
Day 2 of the event I built a simple web application so I could see the flow rate of read tickets while I sat in the arena pub with a beer.6
I usually don't work for indian clients. But when I do, they make sure I don't get paid.
Some highlights from my last project,
Client: Do you know ERPnext?
Me: No, but I am good at python.
Client: My boss wants me to find a guy who can create barcode generator for erpnext.
Me: I can use pyBarcode to do it.
This is exciting I thought. I get to learn a new framework. Start working on it. Not an hour passes by,
Client: hey can you remove this menu item?
Me: Which one?
Client: Also can you add the dashboard icons to left sidebar? Like Odoo? Do you know it? It is also python based.
Me: Then why don't you just use Odoo instead?
Client: My boss wants it. He doesn't understand computers. He is pissing mr off.
Me: Then how come he suggested erpnext?
Client: His friend told him.
For the next 3 days he has me working on these UI tweaks, never mentions barcode again.
But I finish the barcode stuff. Tripple check everything to make sure they work. Tell him to check so I can get paid. Guy asks his boss to check.
Boss > Client: It doesn't work
Me: What doesn't work?
Boss > Client: Everything!
Client: I actually tested everything and they work. My boss doesn't know how to use it. He is very old.
Makes me make more changes and finally when I ask for the work done so far,
Client: Boss didn't come to office today. I'll get you paid. Please try to understand my situation.
Me thinking, "mofo your boss didn't hire me,l. You did". But I keep calm and tell him I won't work until I get paid 50%.
3 days passed. No reply. Set his skype status to "Away" forever.
*spidey sense tells me I'm not getting paid, again*
U am beyond pissed and burnt out. I fucking wish there was a mafia I can request to collect my fucking money from them.20
Client: Half of our barcodes aren't being recognized. Can you tell why?
Me: Ok, I will look at the problem... Open the imagens of the failed barcodes and see that all of them have a stamp over the barcode...
What I have done wrong to deserve this...3
This one crazy:
We made an app for our client to scan some parcels via barcode.
They just created a ticket, for complaining that it's hard to scan in the storage room, because it's so dark. They are like sometimes we need to use a torge to scan. Can you increase the contrast of the app or something to scan better in darker place.
Did not know what to answer, but my thoughts were like: why the fuck you don't put enough light in that room?! 🤔🤷🏽♂️6
Client support ticket: we printed the ID cards without leading 0’s can you fix it with software?
Me: unfortunately we cannot because the ID number can be any length. ID 123, 0123 and 00123 can exist. What barcode would 123 go to?
Client: this is ridiculous we will cancel our contract.
Me: i’m sorry we can’t correct for a mistake on your end.
(Side note: I know allowing 0123 and 00123 is dumb but my team didn’t design the business logic)7
So I'm wrapping up for the day and right before I leave a coworker comes up to me with a problem. Our company uses barcodes to track some of our products through their development and we recently switched over to a new system for producing them. The barcodes for this particular product are supposed to have 8 digits, but the last 200 we printed have 9.
I immediately panic because I wrote the script that generates the bar codes and there had been a bug in the past where the script would add extra leading zeroes that weren't supposed to be there. I scramble and check the database, it would be a huge headache if our production database had been compromised with junk barcodes. Nope, all the new barcodes there have the right number of digits.
Next place to check is in the code that writes the barcodes to a text file for staff to print the physical labels from. Nope that's all fine too.
I ask the person who printed out the recent batch of labels to show me how the printing software reads from the text file. She seems confused by my question and shows me how she manually enters in the barcode range to the software. As she does this I watch her add an extra zero to the numbers. 🙃
Even worse there was an option to import all the codes from a text file literally RIGHT BELOW the manual option.
TLDR; Thought my script had screwed up our database, ended up being the fault of a coworker who didn't know how to import text files.1
Last week one of my clients asked me to visit their HQ to take a look at some report tool that has stopped to generate reports. This tool was not made by me, it has zero documentation, but WTH, I can take a look.
So I went to the HQ. When a guy that has called me told me that someone else will be here any second to talk to me, I began to be a little suspicius.
It turned out they want a new app. Not going into detail something that will read bar codes, do some stuff in a database, generate some reports etc. And he need it made in 2 weeks. I have reminded him I am involved in another project that I need to deliver in a month, and it is virutally impossible for me to develop what they want in this time. I offered them that maybe we should hire a team or at least another developer. Hi nodded and ignored what I've said. Well, he said we have maybe 2 weeks more, but that's it. Ok..
So, while working on the other project wich ramained a priority for me, I've began to do some thinking, some research on how to deliver what they want as fast as possible.
Today morning I went to the HQ again to finally take care of that report tool. But never mind that, I also had a chance to talk about the new app. So we made some Agile, wrote down epics, stories, talked about hardware etc. After two hours, it turned out, that more than this bardcode reading app the need something else! Barcode reading yes, but even more they need a scheduler for their emloyees, custom functionalities, plus some HR tools, other fancy stuff. But they don't even have a full concept yet. And it needs to be done until end of the month (9 days), maybe two weeks later.
So again I told them I will not be able to deliver this in set timeframe. That possibly we need to hire someone and even then it's questionable if this will be possible given all circumstances, time needed test, to deploy (in 14 diffrent locations all over the country). Actually if I had all software ready today the deployment, tests, training... So I offered that maybe we can figure out some temporary solution based on third party software.
At this point my requests and suggestions have been ignored again. Sadly my contract with them states I can not pass this to someone else, it all have to go trough them. And tehy don't want to spend extra money (??) etc.
Also from what I understand, this whole company's (~1000 employees) be or not to be can be affected by this project.
Sometimes I just don't understand business.1
I’m a devRant virgin and also a new dev so...
Anyone got any general tips for a newbie? For example, what are some bad habits that newbie devs should avoid picking up? Good habits?30
>School librarian asks me about library pass design
" Hmm, i think we can put the course name below the student's name and such and putting the barcode where the course name was previously"
>SA who designed it agrees.
today was a good day
My coworker literally thinks that handheld barcode scanners scan the barcodes like a photo scanner and uploads them to a server to compare the image with an existing one in the database.11
TL;DR just read this
So my current (student) job. Asked me to count inventory. Did so, on paper because nobody had a list of the product barcodes for easy cumulative scanning. I also made records for every single barcode. Then I had to key it in onto the Bookkeeping and sales software thing. They don't have keyboard shortcuts, so I quickly made an ahk script.
Had to manually type in everything 3ven though I had a digital listing.
Software lets you print barcodes for products but gives you an error when you try because you haven't assigned a code. WHICH YOU CAN'T DO IN THAT Crap. You also can't search for a product based on code.
Found out it used access as a back end for that buggy c++ thing that crashes with 'operation not permitted' when you press the red x. Great! Now I can import! And there is a barcode field. Wow. Fucking fantastic. What a fuckfest.
Their website. Their fucking website. Great from a user's standpoint, but my God. It uses joomla! However, version 2.5. That hasn't been supported for a long time. Part of the images are hard coded into the theme. The text editor flips. Adding a page sometimes works, sometimes it doesn't, and sometimes makes 2 pages.
And their cnc lathe runs on a laptop with Windows 3 on it, but hey, fine5
When I wrote my first algorithm that learns...
So in order to on board our customers onto our software we have to link the product on their data base to the products on ours. This seems easy enough but when you actually start looking at their data you find it's a fuck up of duplication's, bad naming conventions and only 10% or so have distinct identifiers like a suppler code,model no or barcode. After a week or 2 they find they can't do it and ask for our help and we take over. On average it took 2 of our staff 1-2 weeks to complete the task manually searching one record of theirs against our db at a time. This was a big problem since we only had enough resources to on board 2-4 customers a month meaning slow growth.
I realized when looking at different customers databases that although the data was badly captured - it was consistently badly captured similar to how crap file names will usually contain the letters 'asd' because its typed with the left hand.
I then wrote an algorithm that fuzzy matched against our data and the past matches of other customers data creating a ranking algorithm similar to google page search. After auto matching the majority of results the top 10 ranked search results for each product on their db is shown to a human 1 at a time and they either click the the correct result or select "no match" and repeat until it is done at which point the algo will include the captured data in ranking future results.
It now takes a single staff member 1-2 hours to fully on board a customer with 10-15k products and will continue to get faster and adapt to changes in language and naming conventions. Making it learn wasn't really my intention at the time and more a side effect of what I was trying to achieve. Completely blew my mind.
I've been developing an Android app for a specific model of a handheld barcode scanner (almost 3 months) for our customers.. We are finally going live with this application so my boss ordered a new batch of devices. Bought the newer, fancier model instead of our test/dev model...
*Fatal error galore, different storage type, different barcode reader, deprecated functions,..*
Oooh the joys..
(Needs to be finished by tomorrow)2
Angular is still a pile of steaming donkey shit in 2023 and whoever thinks the opposite is either a damn js hipster (you know, those types that put js in everything they do and that run like a fly on a lot of turds form one js framework to the next saying "hey you tried this cool framework, this will solve everything" everytime), or you don't understand anything about software developement.
I am a 14 year developer so don't even try to tell me you don't understand this so you complain.
I build every fucking thing imaginable. from firmware interfaces for high level languaces from C++, to RFID low level reading code, to full blown business level web apps (yes, unluckily even with js, and yes, even with Angular up to Angular15, Vue, React etc etc), barcode scanning and windows ce embedded systems, every flavour of sql and documental db, vectorial db code, tech assistance and help desk on every OS, every kind of .NET/C# flavour (Xamarin, CE, WPF, Net framework, net core, .NET 5-8 etc etc) and many more
Everytime, since I've put my hands on angularJs, up from angular 2, angular 8, and now angular 15 (the only 3 version I've touched) I'm always baffled on how bad and stupid that dumpster fire shit excuse of a framework is.
They added observables everywhere to look cool and it's not necessary.
They care about making it look "hey we use observables, we are coo, up to date and reactive!!11!!1!" and they can't even fix their shit with the change detection mechanism, a notorious shitty patchwork of bugs since earlier angular version.
They literally built a whole ecosystem of shitty hacks around it to make it work and it's 100x times complex than anything else comparable around. except maybe for vanilla js (fucking js).
I don't event want todig in in the shit pool that is their whole ecosystem of tooling (webpack, npm, ng-something, angular.json, package.json), they are just too ridiculous to even be mentioned.
Countless time I dwelled the humongous mazes of those unstable, unrealiable shitty files/tools that give more troubles than those that solve.
I am here again, building the nth business critical web portal in angular 16 (latest sack of purtrid shit they put out) and like Pink Floyd says "What we found, same old fears".
Nothing changed, it's the same unintelligible product of the mind of a total dumbass.
Fuck off js, I will not find peace until Brendan Eich dies of some agonizing illness or by my hands
I don't write many rants but this, I've been keeping it inside my chest for too long.
I fucking hate js and I want to open the head of js creator like the doom marine on berserk16
Went to The fruit company (Watch Forrest Gump if you don't know which company I am referring to) to pick an order up for a friend of mine. Showed the girl the email with order ID on my phone, and she tapped "Show Remote Content" without my consent to download the barcode because she was born after 1996 and too lazy to use the keypad on her scanner.7
Hi guys, I’m that good guy MIS who knows a little bit python and got “promoted” to write a warehouse management system in C#, which I have never use it before.
Just now I submit my first pull request to DevOps and got accepted.
Just a small EF core and barcode generators stuff but I’m so glad I made some progress 😬3
After previous rant (https://lynkz.me/9xAFVZ9) he told me to be as close as possible to the design from the designer. There was on the left side a BarCode, which made no sense. So I didn’t add it. Now today (saturday) he told me I need to add the barcode because it looks classy. I told him we had a QR code already with same data. His anwser, yeah but it looks better with Barcode added too. Just f*** off! Your classy, shitty barcode will have a great price as it’s weekend. Thanks @linuxxx for the url shortner, it’s awesome!9
"Our app needs a barcode scanner"
Fair enough, let's do this!
Android implementation using Zxing: 3 days. Ios: 9 days...
1. Dev iPhone has a subtle hw defect that doesn't let it connect to the computer anymore...
2. Our app-framework doesn't have a proper plugin for ios barcode scanners yet.
3. The first barcodescanner implementation is completely broken
4. Swift is not possible because of conflicting framework plugins
5. Build a plugin from scratch, using zxing objective c port.
6. Build problems with main app.
7. Fuck my life2
Hey just brainstorming a business/ startup idea I may try out sometime down the line. I wanted to put it in writing available to my peers for review. If that sounds boring, sorry.
So I've had an idea and I know it's a million dollar idea because it's absolutely boring as fuck.
Recently I have been learning about NoSQL and it has gotten me pretty excited about unstructured data.
Now the first thing you should know about me is I like to make business software. I don't like games or social networks or blah blah blah, I like business stuff. One dream I have always had is to make THE business solution. I've noticed so many specific business solutions for very specific areas of work. Specific software for car washes, which is separate from the software for car maintenance, which is separate from the point-of-sales software, which is separate from the [...]
One of the problems with this is the inconsistency. Modular is good, but only if the modules are compatible. They aren't. Training needs to be provided for each individual system since they are all vastly different. And worst of all, since all of these different applications reach their own niche market, they charge out the butt for things that are usually very simple "POST a form over http(s)" machines.
I mean let's not get too dreamy here. My solution is an over-complicated form-builder. But it would be a game-changer for small and medium-sized businesses. Allowing users to build their own front-end and back-end disguised as a drag-and-drop form builder would be THE alternative, because they could bring all of their solutions into a single solution (one bill!) and since THEY are the ones that build what they need, they can have custom business software for the price of a spreadsheet program.
The price difference we could offer would be IMMENSE. Not only would we be able to offer "cookie-cutter" pricing as opposed to "custom" pricing, but since this generic solution could be used for essentially all of their systems, we aren't just decreasing one bill. We're decreasing one bill, and eliminating the rest entirely. We could devastate competition.
"BUT ALGO", you scream in despair, "USERS AREN'T SMART ENOUGH TO DRAG AND DROP FORM PARTS TO MAKE A FORM"
I mean ya true. But you say that like it's a bad thing. For one, we can just offer a huge library of templates. And for another, which is part of the business plan, we can charge people support dollars to help them drag and drop their stupid fucking forms!! Think of the MONEEYYYY YOU COULD MAKEE BY EXPLAINING HOW TO COLLECT FIRST AND LAST NAMEEE. Fuck.
The controls library would be extensible of course. You would be able to download different, more specialized controls if you need them. But the goal would be to satsify those needs with the standard collection of controls (Including interesting ones line barcode scanner and signature input and all that). But if all else fails, maybe someone made an open source control for you to implement and ignore that stupid donation button. We all do.
This could PURGE the world of overpriced and junky specialized business software, and best of all, it's aimed at smaller businesses. With smaller businesses making more profit, they will stay afloat better and may start to compete with their larger foes. Greater for the entire economy.
Anyways, I'm sure it's full of holes. Everything always is. But I still think it's something I'll try before I die.24
I think they should update receipts with a barcode or numeric code that allows you to import item lists or at least budgetary categories into a desktop app or larger software system or utility so you can track where you money is going better
They put alot of things in bucket categories
Like somehow if I buy something at a gas station it goes into gas and transportation because that's what the company does...
Kind of dumb3
I cannot think about a title, so just story:
in my position as multi headed chimera one of my ongoing task is it to dedust old excel sheets, processes and other super inefficient relics that steal time. Mostly i solve those with some tiny vba scripts, bigger vba scripts or a tiny java applications. usually that takes a few hours or maybe two days, depending on what i think is necessary.
the current task at hand is for our (physical) production, work time is noted on a sheet of paper and later given to the production head. Who then proceeds to type it all in excel to do his thing. The guy is starved of time by a huuge margin.
The other day our CEO-like guy was ranting that nothing in this company gets ever done and that people wasting their time with useless projects and named my project among them.
I dont get humans. First he gives thumbs up for this, knowing that it will probably take me 100 hours or so to create in a working manner but later he calls it "a waste of time?" I presented the use (reducing expensive mantime, paper waste and room for fudgery) and yet he calls it useless? (well, his point was that there are other problems (which are out of my reach anyway))
they guy normally is pretty nice and has an ear for problems, but when it comes to higher computer stuff (>excel) he really struggles.
i really like my side project, gives me room to flex some muscles and test stuff. Also playing with raspberry pis on worktime.
On a sidenote, anyone ever tried raspi mesh networks and knows where i get working >10 inch capacitive touch screens?
Anyone understands what the motivation is for refusing to read a screen barcode as a Greyhound ticket?3
Conversation with a backend co-worker.
Me(Frontend): Here! The POS printer (for development purpose) has arrived! It supports Linux and Windows as mentioned on the box. I've sent you a decent npm package (escpos). Try to print a barcode with it, I'll sync with you tomorrow.
(Next day at noon)
Me: Whatcha doin?
Backend guy: Trying to set up the printer.
Me: ON YOU MAC?
Backend guy: Yes.
I try be as helpful as I can to anyone but it seems like this guy actively looks for a way to invent problems!3
It's been awhile, for the heads up I'm that good dude applied a job as MIS few months ago, knows a little bit python and the manager finds out, he told me I gotta make a Warehouse Management Software for the company in C# PLUS MIS regular work(server management, user trouble-shooting and stuff).
after I finish my Warehouse Management Software about a week ago, my manager told me which I quote:
"wpf is not enough! we gonna bring it to multi platform like a web interface can be use on employee's phone as barcode reader and do things can be done as wpf can.
aaaaand we need RFID integration for the whole system working with Identity Server on Azure.
AAAAAAND we need it online before Feb 2020."
I guess after C#,
I'm learning typescript and angular now.
oh by the way my position is MIS with MIS salary.
Does this means after all these shits. I can apply as RD my next job right?2
After many years, I am trying to learn to react and react-native again.
I went to react native and click on get started. I downloaded CRNA and created Hello World. It asked me to download Expo client.
I was like WTF is this expo? So I installed it on my Note 8 and run the app. This is awesome. I don't have to build the whole app. It did not require Android SDK.
I open the expo website and found lots of SNACKS by other people. I can see the live output of many libraries and I loved the whole thing.
Finally, I installed the Expo client on my iPad. There was no scan barcode option. I thought it was weird. I saw login option. So naturally, I log in and wait for it to show in Expo client. Still nothing.
Finally, google about it and found out that due Apple, I can not see other people example on expo anymore.
Why the fuck Apple has to kill something this awesome. I can not express my anger on this.
It goes back in college days were,I started developing on Visual Basic for a college project as it was the only option.
As the scope was limited to a standalone application,we we're not allowed to use network.
Building up on the that,the project was to be done in a group of two with SRS and other stuff needed to done.
With my partner having no knowledge about the code,I took my ideas and Incorporated it into my project such as system logs,session tracking,data records,barcode reader,export data in various formats and so on.
The project got large eventually and professor's were curious to see the development of my project.
The project got showcased as the best project by professors and that overall gained my popularity in college and got me a job offer which I rejected in the end
LOL XCode....I think they meant "X"tra useless, resembling such as a bag of dicks without handles!!!!
Also, being fucking buried because there's aren't any devs anywhere to be found near me makes me extra cranky!
Ive been hammering away at this Flutter, Java, Swift, Python, and Google maps for just about 36 hours on 3.5 hrs sleep. I just can't stop, I fuckin love this shit!!!
Considering the fact that I'm self taught and just started writing code for real about 7 months ago, I'd say I'm handling this alright for now. Every bit of tech is getting shot out of a cannon at this one- maps, real time tracking, state level auth/Id verification, custom components like ID scans/native desktop applications on custom linux machines, body cams, SIP trunking... all in 3 apps which are 100% multi-platform and scaled up to high end enterprise levels and being groomed for national release. I'm writing the code and doing the tech for ALL of it- even down to custom painted barcode scanners, a wallet system built from scratch, GPS integration, location/geofence based document querying... holy fuck guys I'm gonna fuckin die haha!!!
I went from barely getting websites made in late summer to this very moment, where I am pumping shit out in Flutter, Dart, Python, CPP, Js, Swift, Java, Kotlin, Obj-C, SQL/noSQL, and who knows what else.
I don't even know what the hell I just said haha I hope everyone has a great day!
I want to do one project in which using arduino uno and RFID reader to take attendance but for this I have to need 100 reader card which is costly. So I thought using bar code so I can print barcode on paper and no need any card. So does anyone idea where I can get bar code module for arduino uno.4
im developing a medical app which is able track and remind you with your medication intakes. The app lets you scan the barcode of your pills.
For testing of the scanning i would need pictures of french (CIP) and spanish medication barcodes.
Would be super awesome if you guys and girls could send me a quick picture of the barcodes ❤️