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Search - "gsm"
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A while back, I had a lot of telemarketers were calling me daily, and I mean A LOT of them.
I got so frustrated with he calls that I decided I had to figure out a better way to handle those calls.
At the time, I was working with a PBX software called Asterisk, which is used to handle hardware interfaces and network applications for phone calls.
I needed a suitable side project and there was a version of Asterisk designed for Raspberry Pi, so I made a fun little answering service for myself.
Whenever a telemarketer called, I asked them to call back later, but to "my personal number", and gave them the number to my phone robot. (which had a pre-paid SIM card in a GSM dongle mounted)
When it received a call, it would play a pre-recorded phrase, wait for 1000 ms of silence and then play the next phrase.
After all 16 phrases had been played, it would start from phrase 7 again and repeat until the caller gave up.
I had this set up running for a while, and then added another robot for english speaking callers.
The calls stopped after a few months.
MISSION ACCOMPLISHED!13 -
Holy shit. Germany really is a third-world country in regards to connection speeds and reliability. I am visiting my dad this summer, that's why I'm here in the first place. Germany has the most unstable GSM/EDGE connections I have ever seen and everytime I go to Germany, I get reminded of that. Sure, they are slow by design, but in Austria, you can at least use them! In Germany, you
simply.
fucking.
can't.
I couldn't even transmit 10 bytes to my Raspberry Pi 3B without interruption, at any given point in time.
I really have to force my phone to stay in WCDMA/LTE mode now... Great stuff.35 -
Hey guys and girls ^~^
I hope this question is ok as it's not entirely dev related.
I'm planning on building a custom cattracking device that i can attach to a cat harness. It obviously has to be very small and light. This is why i had the pi zero in mind.
I want to track my cat via Gps and send location via gsm (and use a trigger if he connects to my wifi to set off an alarm so i can let him in).
My experience with pi's is limited but i have some with arduinos.
Besides that i would need a case which keeps the pi save from dust, humidity and maybe rain but won't interfere too much with the gsm signal.
First: is this even possible?
If yes, what would you recommend?
Are there better ways to do this?
Thanks to all in advance35 -
College student here.
What are the most important skills/assets one should bring to the workplace? As a developer and a colleague.5 -
In fact I'm a sinful dev, so that I can't easily decide which one is worst. From indenting with tabs, or using nano instead of vim/emacs, to hardcoding database credentials on server, to many hacks and workarounds I use as actual "fixes" when the deadline is upon me and I've tried all I could. But it always led only to my own regret. For instance, my latest sin was that I prefered Debian over Arch and used proprietary graphic drivers to speed up my new setup. But ended up with a curse from St. Ignucius. (check my last rant)
But my worst sin probably goes to when I was "printf-debugging" some issue for a GSM controller on a raspberry pi. I forgot to remove one little print line and deployed the new "fixed" version. I didn't follow that project after that for like a month or so, when the client posted back the device and said that "it just doesn't work anymore". It seemed that raspbian didn't boot beacause the sd card was curroptted. I dd'ed through the card and I noticed that there are billions of lines of "DEBUG:: reading stream from 192.some.shitty.ip", took almost all over the 32G sdcard. Just as I suddenly remembered the cursed line I just added a month ago, I declared the sd card dead with no hesitation, dunce-commented the line (so the history would remember), implemented a time out for the thread containing it, setup a journald unit for my service and removed the redirection of process output to a log file, found a new sd card and installed everything again, and finally posted back the new "fix" to the client.
Moral: Never comfort yourself for the sins you have commited in the past kids, they certainly will come back to you. And also not to do any io especially write to a file on an SD card with ext fs, in a potentially infinite loop with no timeout.
P.S: I'd posted my last rant just before the new week rant last nigh. I really liked the St. Ignucius meme so decided to create a new one. He's very adorable :)1 -
A dev life in Queen songs:
„A Kind of Magic“ - Build successful
„A Winter’s Tale“ - Key Account Manager visits customer
„Action This Day“ - Release day
„All Dead, All Dead“ - System down
„Another One Bites the Dust“ - kill -9 4711
„Breakthru“ - 10 hour debuging session
„Chinese Torture“ - Microsft Office
„Coming Soon“ - Client asks for delivery date
„Dead on Time“ - shutdown -t 10
„Doing All Right“ - How's the progress on the new feature?
„Don’t Lose Your Head“ - git push -f
„Don’t Stop Me Now“ - In the zone
„Escape from the Swamp“ - Hand in resignation letter
„Forever“ - while(1)
„Friends Will Be Friends“ - friend class Vector;
„Get Down, Make Love“ - No rule to make target "Love"
„Hammer to Fall“ - Release day
„Hang on in There“ - 2 weeks until release
„I Can’t Live With You“- Microsoft
„I Go Crazy“ - Microsoft
„I Want It All“ - Google
„I Want to Break Free“ - free( (void*) 0xDEADBEEF );
„I’m Going Slightly Mad“ - Impossible feature requested
„If You Can’t Beat Them“ - Impossible feature promised by sales
„In Only Seven Days“ - Impossible feature ordered
„Is This the World We Created...?“ - Philosphic moments
„It’s a Beautiful Day“ - Weekend
„It’s a Hard Life“ - Weekday
„It’s Late“ - Deadline was last week
„Jesus“ - WTF?
„Keep Passing the Open Windows“ - Interprocess communication
„Keep Yourself Alive“ - Daily struggle
„Leaving Home Ain’t Easy“ - Time to get up and go to work
„Let Me Entertain You“ - Sales meets customer
„Liar“ - Sales
„Long Away“ - Project start
„Loser in the End“ - Dev
„Lost Opportunity“ - Job ad
„Love of My Life“ - emacs/vim
„Machines“ - Computer
„Made in Heaven“ - git
„Misfire“ - Unhandled exception at Memory location 0xDEADBEEF
„My Life Has Been Saved“ - Google drive/Facebook
„New York, New York“ - Meeting at customer
„No-One But You“ - Bus factor = 1
„Now I’m Here“ - Morning rush hour
„One Vision“ - Management goals
„Pain Is So Close to Pleasure“ - NullPointerExcption
„Party“ - Delivery completed
„Play the Game“ - Customer meeting inhous -
„Put Out the Fire“ - Support hotline
„Radio Ga Ga“ - GSM/GPRS/UMTS/LTE/5G
„Ride the Wild Wind“ - Arch Linux
„Rock It“ - Linux
„Save Me“ - CTRL-S/CTRL-Z
„See What a Fool I’ve Been“ - git blame
„Sheer Heart Attack“ - rm -rf /
„Staying Power“- UPS
„Stealin’“ - Stack Overflow
„The Miracle“ - It works
„The Night Comes Down“ - It doesn't work
„The Show Must Go On“ - Project cancelled
„There Must Be More to Life Than This“ - Philosophic moments
„These Are the Days of Our Lives“ - Daily routine
„Under Pressure“ - 1 day until release
„Was It All Worth It“ - Controlling
„We Are the Champions“ - Release finished
„We Will Rock You“ - Sales at customer
„Who Needs You“ - HR
„You Don’t Fool Me“ - Debugging session
„You Take My Breath Away“ - rm -rf /
„You’re My Best Friend“ - emacs/vim4 -
Hey Guys, I'm starting a new project for iOS. This App is for who have trekking or love to walking in to the woods. It record the positions, altitude and is possible to save your favourite places (with photo and description). There are also an SOS functionality that permit to return at home position (also without GSM or internet connectivity) and to ask for help (I still thinking how this can be done). I've attached first layout made with sketch witch will make it clear what I'll do.15
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I've read that devRant is using javascript and the likes, what I'm wondering is how one uses javascript for android apps. I know PhoneGap exists, but I also read that there is some performance issues with it. what does devRant use?2
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- I have done this, this and this. I'm an amazing programmer even though i copied it from SO.
- Allright, could you explain this part since you did not write one single comment.
- (insert generic bullshit excuse)
you don't think he's the one getting the internship amd the summer job since he's the loudest? dear god, my fist, his face.3 -
A big development company needed summer interns, the job required java and the likes and it was the first big interview i've had. This wasn't a problem, i thought, until i got there. worth noting is that Im still in school and and the last time i used java extensivly was a year prior to the interview. I completly blanked on the, rather basic, questions. needless to say, I didnt get it.2
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when I get the assignment of debugging my group members uncommented Java Swing application, I seriously have to untangle that mess for days
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2005, after I tried to program my computer to be quicker. By the time I realized that it was impossible, I was hooked.