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Develop software for raspberry pi to convert from mqtt client to modbus-rtu slave

$750-1500 USD

已关闭
已发布大约 7 年前

$750-1500 USD

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Please refer to attached specification
项目 ID: 13907246

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远程项目
活跃7 年前

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7威客以平均价$1,734 USD来参与此工作竞价
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Provide a clear example of a similar job you have done in the past. you know :-) Proposal: FREELANCER RECOMMENDED ------------------------------------------------------ Can help... I am an Expert... Lets Start! Please start a Discussion with me and we can get started from there... Please check the past projects I have handled and check my reviews for what employers have to say about my work... Can start right now...
$3,888 USD 在30天之内
5.0 (2条评论)
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Hey We are a team of Technical Developers and have got expertise in such stuff. Ping me if you are looking for a quick resolution
$1,666 USD 在7天之内
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Provide a clear example of a similar job you have done in the past. Hi, I have implemented modbus protocol for data acquisition system and motor protection system. Proposal: I have gone thru the pdf specification. but there were no questions.
$1,500 USD 在30天之内
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Provide a clear example of a similar job you have done in the past. Interface ro a vending machine MDB protocol invloving also interface circuit development. Payment data is verified on a web site (tcp). Is a cashless payment system. Proposal: It will suggest to use a low level language as C++ to achieve realtime and comm buffers, depending of expected data rates. Maybe if massive project in mind, substitute raspberry for more embeed developed circuit borad.
$833 USD 在10天之内
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Provide a clear example of a similar job you have done in the past. Currently doing several apps gathering data from multiple PLCs via RPi & pushing to Azure etc. Can show you in a web meeting. Proposal: We have driver for MQTT both as a subscriber & server & also Modbus slave. Both will work on RPi. Also have the cloud interactions done for data disbursements to other applications from cloud.
$1,250 USD 在20天之内
0.0 (0条评论)
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DENMARK的国旗
Risskov, Denmark
5.0
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会员自4月 17, 2017起

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