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Audio Magnetic Card Reader/Decoder - repost

$250-750 USD

Cerrado
Publicado hace más de 10 años

$250-750 USD

Pagado a la entrega
Description A fiber optic microphone converts acoustic waves into electrical signals 1. Takes signal from a small high quality mini microphone 2. Gives an output of +3.3V when signal from mic breaks threshold 3. Output drops to 0 when signal returns under the threshold 4. Frequency up to 100KHz or what ever Frequency is needed 5. Threshold to be adjusted by some resistor or capacitor etc. The mag head gives out mag waves have to sample in a good way... record in phase, then decode... for the moment in visual mode... Possible 5% more acurate on partial swipes Will defintly need to make new firware/sofware to decode the wave files Magstripper software Software used to decode such data. Magstripper - can be found here ([login to view URL]) - you can import your wav file and get the track2 data. - Convert Audio to ASCII text - LRC and CRC checksum module The program will read in both directions, after this the track2 will be recreated, you know: card swipes forward - you can read the track from the start to end - 70% card swipes backwards - you read backwards - 70% of the information from end to start Will need to make a detection module, it will detect where is 0's and 1's that's the real job.. I'm searching for real programmers, that can help.! It's a very interesting project and should have some fun too.. Some other projects for reading from raw analog audio: [login to view URL] This was a project that I wanted to do long time ago, but never had much time in doing it. I know this can be done and if done very succesfully, will be somthing new availible and interesting for other to gain attention of new Audio Magnetic decoder This is a prototype so size is not very important for now.. After we debug, adjust and have a working hardware in hand, will defintely need to resize everything. I will be more then happy to supply and pay for costs of part/PCB Ect to get this project moving faster.. Will be a fun project to work together.... Looking forward..
ID del proyecto: 5106638

Información sobre el proyecto

9 propuestas
Proyecto remoto
Activo hace 10 años

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9 freelancers están ofertando un promedio de $1.354 USD por este trabajo
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Hello, I cant understand your proposal and I dont know what to bid for and that is why I used the default bid. Please donot take this as a final bid. I have decoded a lot of F2F wave forms in thte last year and a half. I now just see a waveform and start decoding 1s and 0s. I also designed circuits that interfaced with a magnetic head to get the waveform and then decode them and then again encode them so that I can receive a better sound file on a mobile phone. Let me explain what I was doing. I was assigned to make a product similar to squareup but it was to be designed such that it would work with a cheap JavaME phone. I was to design a circuit and then write a software on JavaME which can decode the swiped card. I made the first prototype and it worked really well but was limited to Nokia S60 devices only. To cover other devices we had to use amr decoding, also the sampling frequency was too low (8Khz) this frequency was not enough to deliver the complete information and at the end of the swipe it became too difficult to actually decide whether the bit is 1 or 0. So I designed another battery operated circuit with a life of 2years with 10 swipes a day to first decode the swipe and then transfer the data in something which can be decoded easily to the phone at 8Khz. This also worked and we had a working prototype. What I need from you is a breif description of why do you want to hire someone and what would be his job. Looking forward to hear from you.
$555 USD en 3 días
5,0 (1 comentario)
2,7
2,7
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Hello I am embedded developer and take up this project. Please contact me so that we can discuss the technical aspect of this project. Regards Zahab
$1.111 USD en 3 días
3,4 (1 comentario)
2,6
2,6
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A proposal has not yet been provided
$555 USD en 7 días
0,0 (0 comentarios)
0,0
0,0
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OK, if you need for educational reasons or any other legal reason a device how save Track 1, 2, 3 and others things like PS2, matrix keyboard, 232 communications and send you the information with a wireless device or GSM to a remote internet server let me know.
$5.000 USD en 1 día
0,0 (0 comentarios)
0,0
0,0
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Hello Sir, Thanks a lot for considering me for this work. I am working as an Senior Embedded Engineer in India with 5 years of overall experience. I had experience in working on C, Embedded, QNX RTOS, Algorithms, Electronics, Microcontrollers like 8051, PIC, ARM7TDMI etc, OrCAD, Pspice, Communication Protocols like Bluetooth, CAN, I2C, SPI etc. I can finish the work in 15 to 18 days. I can complete your work with 100% accuracy & in time. So, please consider me for this project. Waiting for a favorable reply. Thanks - gtbtech.
$620 USD en 15 días
0,0 (1 comentario)
0,0
0,0

Sobre este cliente

Bandera de FRANCE
BERLIN, France
0,0
0
Miembro desde ene 12, 2012

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