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COIN ACCEPTOR -- 2

€750-1500 EUR

Cerrado
Publicado hace casi 3 años

€750-1500 EUR

Pagado a la entrega
Hello In a business working with coin acceptors for their services, I need to add an interface similar to this in the photo so that I 'll get a barcode to the rs232 output similar to the value of the coin inserted. The interface appeared is already working for ten years now but now I need to add machinery with these different coin acceptors in the photos. I got all the related details with the board schematics and electronic diagram in case that it helps. I got also the barcode list related to coin values the board is based on Atmel At89s52. I don' have the ic firmware from the previous developer. At the input side of the board, we got 8 independent inputs that have to recognize the pulse signals from the coin acceptor output. Best regards
ID del proyecto: 30222270

Información sobre el proyecto

17 propuestas
Proyecto remoto
Activo hace 3 años

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17 freelancers están ofertando un promedio de €1.037 EUR por este trabajo
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Hello, I hope you are doing great. I have good experience with doing similar jobs. You can check my portfolio here: https://www.freelancer.com/u/AwaisChaudhry?w=f I can do this job because have great experience with C Programming, Electronics, Software Architecture, Electrical Engineering and Microcontroller. Please start the chat and discuss this. Thanks! Awais
€1.500 EUR en 12 días
4,9 (69 comentarios)
8,0
8,0
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Hello, I've good experience designing interface convertion circuits, if you have all information available I think we can make a new circuit and develop the firmware to output the correct rs232 code. Please send me the details and I will take a look at it and give you some suggestions. Let me know if you have any questions. Best regards,
€1.300 EUR en 30 días
5,0 (15 comentarios)
6,2
6,2
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Hi, I am Electrical and Electronics Engineer with 14 years experience. I have good knowledge in AT89S52 micro as well. You can check my completed projects in my profile portfolio. Please share details of your current device, schematics ,..etc. I can either develop new firmware for your current board with AT89S52 or develop a new hardware and firmware as per your requirement We can discuss Regards Senthil Chennai,India
€800 EUR en 30 días
5,0 (11 comentarios)
4,8
4,8
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Hi, there How are you doing I have read your project's description in detail I think I can complete your COIN ACCEPTOR task perfectly because I have rich experience in this kinda rs232c communication module and barcode reader project development for 10+ years I will provide the good result in time I hope we can cooperate forever thanks
€1.000 EUR en 15 días
5,0 (6 comentarios)
4,8
4,8
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hello sir.✋ I have just read your job description and your project is really interesting to me. The Items you raised are similar to what I have already done in practice and I think you can do it in a short time if you have a little explanation. I'm an expert having specialization in Electronic Engineering Design. ✔️ Embedded system based on Microcontroller (ATMEGA, AVR, STM8, STM32, MSP430, TMS320, PIC ...) ✔️ Python with Deep Learning, Machine Learning ✔️ Python with Data Science ✔️ A system based on development boards(Arduino, Raspberry PI, Node MCU, Bluechip, Teensy,…) ✔️ Antenna design & Analog circuit/RF communication circuit designing and simulation using Proteus, P-Spice, Tina Pro, ADS, CST, Ansys, HFSS ✔️ Bluetooth, WIFI, zigbee, LoRA ✔️ High-Speed layout using HyperLynx ✔️ PCB layout designing, providing GERBER and BOMs, 3D files using Altium, EAGLE, Kicad, EasyEDA… ✔️ Programming firmware of Microcontroller & C++ ✔️ BMS I think my many design and practical experiences can help you design your project and give you enough satisfaction. I look forward to your response. Best Regards.
€1.125 EUR en 15 días
5,0 (16 comentarios)
4,2
4,2
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Hello, Thanks for posting the project. I am an Electrical Engineer with 30 years’ experience of Customized Product Development for Instrumentation and Control applications. I am based in Kolkata (India) and running a business in the name of "Zetek Systems". I have a good hardware setup and a team for fabrication and testing. Following is the outline of my solution: Check In your present board if you can access pin 10 and 11 (serial in and out for AT89S52). It should be unused. An additional small circuit (to convert TTL to RS232 ) can be attached as bridge to send barcode to the new device. This will minimize the hardware work. The firmware has to be re-written. For this project we can discuss more detailed specification, deliverables and milestones through chat. Looking forward to your valued reply. Regards - Debasis Basu
€750 EUR en 15 días
5,0 (1 comentario)
3,2
3,2
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Professional software developer with over 15 years of overall experience in software development and maintenance looking for challenge projects fit my skills. Main specialization: * developing Windows Desktop and Web solutions (mainly using C, C++, C#, ASP.NET) * converting/translating/porting code from one programming language to another programming language. * writing wrappers around miscellaneous libraries, packages and SDKs, mainly for using it with other programming languages C & C++ & & C# expert ? JAVA & Qt expert ? AWS & Google cloud ? PYTHON ? ANDRIOD Moreover, I'm a full-stack web developer looking for opportunities to work with your project. I'm working as a self-employed developer and ready to dedicate full-time to any kind of project. Generally, I work more than 30 or 40 hours per week. Thanks for watching at my profile
€1.125 EUR en 7 días
5,0 (2 comentarios)
2,3
2,3
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Hello. I have checked your job description and I am really interested in your app As a senior developer I have 7+ years of experience in this field As you can see my profile, I have finished very difficult type of app a few days ago and other developers can't solve this app but I have done Now I can communicate when you want I have already published 9+ apps like you want so I am sure that I can finish your job perfectly. If you want to hire a reliable developer, please contact me. I am waiting for your contact. Thank you. Best Regards.
€1.125 EUR en 7 días
5,0 (1 comentario)
2,1
2,1
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Hi, Dear Client! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I am an ATMEL series firmware developer. An AT89S52 programming is second nature to me. I have the skill to complete more than that even under conditions lacking raw data. I can complete your project sincerely and perfectly. Please contact me. Kind regards, Danil ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
€750 EUR en 6 días
2,7 (4 comentarios)
3,6
3,6
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Hi, I have checked The requirement and understand that as well. I have done SIMILAR work past. Do you want to see the DEMO ??? Then Text me here will show you Thanks.
€1.125 EUR en 7 días
0,0 (0 comentarios)
0,0
0,0
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Hi we are making rfid based gaming device which replace coin accepter and give pulse output to gaming machine. we can give you new device with your requirement and we can also modify your working devices. regards
€833 EUR en 21 días
0,0 (0 comentarios)
0,0
0,0
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I have dealt with coin acceptor systems for close to 3 years in the design of milk sale atms, water sale atms and salad atms. I have everything ready to begin the job. Kindly share more details.
€1.125 EUR en 7 días
0,0 (0 comentarios)
0,0
0,0

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Bandera de GREECE
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Miembro desde abr 14, 2017

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