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MDB telemetry and broker management module

$30-250 USD

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Publicado há mais de 1 ano

$30-250 USD

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C, C++ developer required to write control and telemetry software based on ESP32 or STM32 microcontroller. 1. The device must connect to the vending machine using the MDB version 4.2 protocol in SLAVE mode and present itself as a bank card reader. 2. The device must connect to the bank payment terminal using the MDB version 4.2 protocol in the MASTER mode, and present itself as a vending machine. 3. An example of the operation of the device: - the vending machine makes a payment request to the device - the device, depending on the business logic, makes a request for payment to the payment terminal or immediately responds to the vending machine with a refusal. - if there was a request for payment to the terminal, the device waits for a response and, depending on the business logic, responds to the vending machine with confirmation or refusal. You also need to implement the ability to make a request for a refund to the client. for testing business logic, you can put it in a yuart terminal for a PC or on a GPIO button. you can use Arduino or PlatformIO
ID do Projeto: 34303717

Sobre o projeto

13 propostas
Projeto remoto
Ativo há 2 anos

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13 freelancers are bidding on average $110 USD for this job
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Hello, I am an electronics and telecommunication engineer and my major is wireless systems' design. I am experienced in hardware and embedded systems' design. I have checked your requirements I am quite sure that I can help you with your project. Just give me all the details and I will do my best to help you. Best regards
$140 USD em 7 dias
4,8 (52 avaliações)
5,5
5,5
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Hello, How r u doing? I have gone through the project and i believe that i can handle it well having experience related to Electrical Engineering, C++ Programming, Arduino, Microcontroller and C Programming. Please have a look at my profile to have an idea of my previous work: https://www.freelancer.com/u/ayesha0124 Regards, Ayesha
$250 USD em 7 dias
4,9 (5 avaliações)
4,5
4,5
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As an Electro-mechanical Engineer, I bid on your project because I have the expertise and experience to provide high quality work. I can achieve the results that you are asking for. So , respond to the offer so that we can discuss it thoroughly. Thank you in advance. Best Regards .
$100 USD em 2 dias
4,9 (23 avaliações)
4,4
4,4
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HELLO; I am working as a research and development manager in a private company. I have more than 5 years of experience in embedded system software and hardware. As for software, I am proficient in microcontrollers such as (*****STM32*****), MICROCHIP, NUVOTON,ARDUINO,ESP32,MSP430,RASPBERRY Pİ. I have experience in communication protocols such as CanBus, ModBus, RS232, RS485, TCP IP, Socket Communication. I am an expert in Altium and KiCad programs in hardware. I have read and understood your project. Please write to me for details.
$140 USD em 6 dias
4,6 (4 avaliações)
4,3
4,3
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MDB telemetry and broker management module I am Minahil Hameed with a vast amount of experience in multiple fields like; Finance & Economics, Accounting & Cost Accounting, Business & Management, Taxation & Auditing. I have achieved great amount of success in this industry by providing TOP NOTCH solutions to my clients. I always provide quality services & respect to my clients because I consider him/her as my BOSS. I provide friendly environment to my clients so they always feel comfortable and openly discuss their requirements which allow me to produce MAXIMUM results...! Please visit my profile to see my reviews and samples. www.freelancer.com/u/writinglabb
$30 USD em 1 dia
5,0 (2 avaliações)
0,7
0,7
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Hello Dear Client, after thoroughly reading your PROJECT DESCRIPTION i have clearly understood it and i would like to work with you. I am a skilled and experienced in the named SKILLS. I consider your project DOABLE as it is within my areas of EXPERTISE. I am a competent guy committed in making your project a SUCCESS and providing the best QUALITY to your SATISFACTION. NB. #100% job completion, No excuses on meeting the deadline, good communication and provision of update on job progress. Please click the chat button for more discussion about the project. In case your project is deleted you can hire me directly on my profile(click hire me on my profile). CHEERS and Thanks in advance.
$140 USD em 7 dias
0,0 (0 avaliações)
0,0
0,0
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MDB telemetry and broker management module I am an academic expert who can help you with your solutions like; Case Studies, Summaries, Reports, Thesis & Dissertations, and Online Exams and Courses in almost every language. I am new to this website but I assure you that I will provide you with 100% quality work without plagiarism within your given deadline and budget. I am new here but I am familiar with this industry as I am working here since 2013. Please give me a chance and feel free :) Thank You
$30 USD em 1 dia
0,0 (0 avaliações)
0,0
0,0
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Hi Greetings! I am available right now for the project discussion and can start the project on an immediate basis. I have understood your project requirement I have7++ experience in design and development. I can handle projects from small styling to full development from scratch. I will provide a good result in a short time and satisfy you fully. We have experienced developers in C Programming Microcontroller Electrical Engineering C++ Programming Arduino WHY-ME: » Ready to Start as Immediate& Proper Testing. » Keep your Data & Website Secure: Daily Progress Updates. » You will get 30-days FREE BUG-SUPPORT even after Project-Completion Please give me in touch and let's discuss more detail about your task via chat. Project milestones will be decided during chat Thanks and Regards Arpit Jain Black Grapes Softech
$250 USD em 7 dias
0,0 (0 avaliações)
0,0
0,0

Sobre o cliente

Bandeira do(a) GEORGIA
K'alak'i T'bilisi, Georgia
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Membro desde ago. 6, 2022

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