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Embedded Software for Data Acquisition after Sampling signal -- 2

€18-36 EUR / hour

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已发布超过 7 年前

€18-36 EUR / hour

Task Desc: Develop embedded software for microcontroller to acquire data from analogue signal. There are 4 channels and each channel has to be sampled and processed simultaneously. We have a dual core board based on ARM architecture ready, but if you wish to work on a different architecture, feel free to tell us and we will ship you the board and required electronic components. The code can be developed in C or C++. We will provide required libaries for Rs232 and lwIP to communication. Your task will be to develop the SWD ADC with required sampling rate, store the data in RAM or Flash, transmit data over Rs232 or TCP/IP. It is complicated to decide, who we give this project to. As a solution I have the task details with sample signals and information in the attachment. Please answer the 6 questions and send back the whole documents with your username as in freelancer.com. We will check the answer and allot the project who gives us a satisfactory answer. Don't write the answers in bidding comments. Either email the answers to the id given in attachment or just bid with your target amount and we will contact you via private message for sending answers. Decision of freelancer will be made on the quality of knowledge you represent by your answers. Document in attachment.
项目 ID: 12033401

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活跃7 年前

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17 freelancers are bidding on average €26 EUR/小时 for this job
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Hi, I am a post graduate power electronics engineer and having very good experience in product design and development. I am excellent in embedded programming using pic and dspic controllers for Power projects, Boot loaders, EEprom. I designed sine wave inverters for standalone and grid tie Inverters. I designed projects like Off line UPS up to 3 KVA, synchronous rectifiers, Solar MPPT chargers, Battery chargers ,Grid tie inverters design with PLL and feedback control circuit emergency light of 66W and Online UPS control cards, Battery Charging power supplies, LED drivers for PWM controlling and dimming, SMPS, Power supplies. I have experience in schematics and PCB design experience in Altium and ORCAD. I am ready to work for you. Please contact for further discussion.
€30 EUR 在10天之内
4.9 (60条评论)
6.8
6.8
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Hello! Please check my profile/reviews to know a bit about me. It would be great if I could help you out. I have huge experience in ARM architecture and can write code in both assembly and C. Would be a pleasure if I could work on this. Thank you!
€30 EUR 在10天之内
4.9 (90条评论)
6.2
6.2
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Hello! I have some questions 1. I don't see document with 6 questions in attachment. I do not see any attachment. Please give me link or attach document. About the project. It's not a problem to do what you're asking for. I work with ARM boards, RS232, TCP/IP, flash, ADC and write programs in C. What is required sampling rate? How many data and how long should I store in RAM or Flash, What data must I transmit over Rs232 or TCP/IP. I will develop some high level protocol to transmit data. I will provide documentation and code. While working on the project I'm always online. So you can easy see the project progress and ask me questions. Waiting for the attached documents (with 6 questions) and answers on my own questions about the project. Regards, Vitaliy
€30 EUR 在30天之内
5.0 (2条评论)
4.2
4.2
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Hi, I have plenty of experience with such kind of projects. I think your UART channel will not be able to support 4 channels at the required sampling rate. Plz see my email for details. thanks
€30 EUR 在10天之内
5.0 (2条评论)
3.8
3.8
用户头像
dear Sir i can do this project. I can assure you that if you work with me once, you will always work with me for these kind of projects.
€18 EUR 在10天之内
0.0 (1条评论)
0.0
0.0
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A proposal has not yet been provided
€40 EUR 在7天之内
0.0 (0条评论)
0.0
0.0
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Hi please send us attachement. we like to prove. we have experience in embedded fild around 10 years. Regards
€20 EUR 在20天之内
0.0 (0条评论)
0.0
0.0
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Things that make me best candidate, - I can work with your ARM dual core if it can work with freeRTOS. - I worked with TI ARM M4, FreeRTOS and LwIP setting up a web server to display current and voltage measurement data. - I know the concept of oversampling and generating more bits out of high-speed ADC. - I can easily implement FIR or IIR digital filters if needed for analog measurements. - Able to use HTTP API for data transfer. However I do not see the 6 question attachment. So I can't answer them.
€30 EUR 在10天之内
0.0 (0条评论)
0.0
0.0
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I have been working as HW/SW designer for many telecommunication companies (Ericsson, Thales, Selex etc..) and now I'm a consultant for some of them. Some questions to understand better your requirements: - which kind of signals have to be sampled? which the sampling rate? - which is the processor? Which the ADC (if external)? - Should the streaming be sent to the RS232/ETH in realtime i.e. continuosly? - Is there any protocol to be used on the RS232/ETH? For me it's the first time a make a bid, so I'm not so familiar with this procedure. You talk about a document containing 6 questions to answer to. Please could you send me it? I will answer as soon as I receive it. Hope to to hear from you soon. Regards Ing. Vincenzo Pazienza
€30 EUR 在20天之内
0.0 (0条评论)
0.0
0.0
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A proposal has not yet been provided
€18 EUR 在10天之内
0.0 (0条评论)
0.0
0.0

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GERMANY的国旗
Bonn, Germany
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