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RS-232 Serial Communication.

$10-125 AUD

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已发布超过 7 年前

$10-125 AUD

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Hi there Please read this before placing a bid. i am after serious bidders i have had my time wasted too much!!! i'm trying to find a better way of doing serial communication. I currently have one going but i feel it could be better and sometimes i find that i don't always get the data. i have to resend the command to get the info. i have been told its has to do with my code not being able to handle the data quick enough or something/need more function, etc. Sometimes it will get the data and sometimes it will get half the data and sometimes it wont get any data. The devices i am communicating with are specialized and if you want to be able to look at them and test the code you will need team-viewer so you can access the computer directly that has the units connected to it, etc. i am happy to tell you more just msg me. i have attached my code Hope you can help Regards Jeremy
项目 ID: 10979585

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19提案
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活跃8 年前

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Hi, I would like to test this code on your computer using teamviewer and will find out the problem. Do you have visual studio installed ? Let me know when you will be able to show me. Thanks.
$111 AUD 在2天之内
5.0 (73条评论)
6.2
6.2
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Hi, I'm expert in serial communication in C#. I have seen the code it needs quite improvements. Could you please show me the full source code. I want to run it on VM and then see the results. Ready to start work Thanks, Bilal
$70 AUD 在1天之内
5.0 (10条评论)
5.0
5.0
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I am a Delphi professional specializing with RS232. That is my WORK. I interfaced huge amount of protocols in my crier. I think i will give you a good job. BUT i am not a kid. !!!! see www dot limelect dot com The output will be a program in Delphi!!!!!. I also have a very interesting product.(Not shown on the site). It catches a weight data and put it as TEXT on where the mouse shows the field like excel and more or to file and more. For your project i need to know the protocol and the speed!. I work at 9600 mainly
$555 AUD 在10天之内
5.0 (2条评论)
3.2
3.2
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Hello. I am expert in C/C++/Industrial Communication. I can do your job well. Thanks.
$50 AUD 在2天之内
5.0 (1条评论)
3.0
3.0
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G'day, To fulfill your project, and having taken a quick look at your code, I would start by operating asynchronous data communication with the open port, so your code would not be performing any thread sleeps during reception etc, the port itself is already set to a rate (the baud rate, so you do not need to delay, just wait for data arrival). I would therefore wrap your communications across the port into a class, which has a queue of received bytes and a queue of bytes for transmission, most likely as a series of byte array buffers. Upon reception of new data the receiving code is never held up and a new received buffer is placed into the queue for your program itself to process, this means the only real operations going on is the copying of the bytes from the port buffer to an internal buffer, and then from that internal buffer to your class queue. This minimises the receiving delay. Employing a callback function, we could also then notify your application at large of data arrival, so it can "wake up" upon a message and start to process the input. Like wise the transmitting function would awaken whenever you insert a value into the queue for transmission, and if you were not receiving, it would transmit. My bid is not set in stone however, there are numerous queries I have about your side of the code, but going off of my experience I'm sure I can help. I'm also (obviously) a native English speaker, which always helps you stop getting run around by people :)
$124 AUD 在3天之内
5.0 (1条评论)
2.9
2.9
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I could help you, but I need more information. Have we description of the protocol ( what you have to send and what will receive)? From code you sent There are parts I could not find "startupproIPS"
$75 AUD 在1天之内
5.0 (3条评论)
2.4
2.4
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Hi, I'm new here and very interested in doing hard work more and more. I have 2 years of experience in Asp.net C#, Php, javascript, jquery, ajax, sql Web Based And Desktop applications. Ready To do more for employers like you. Thanks
$111 AUD 在2天之内
0.0 (0条评论)
0.0
0.0
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I wrote drivers for COM ports and built a client-server application on top of it using RS232 cable. Although that was for Linux a while ago, I may be able to help you on this project.
$122 AUD 在1天之内
0.0 (0条评论)
0.0
0.0
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A1Brandz is a customer driven, new age and dynamic company delivering a range of web based solutions to give your online business maximum exposure. Our Developers have more than 15 years of experience in application software development including more than 3 years of strong experience in Project Management / Tech Lead, more than 10 years of strong experience in .Net technologies mainly , VB .Net, C#, ADO .NET , XML, XSLT, Web Service, MVC, .Net Reporting, Threading. We have experience of Amazon Web Services, Ebay Web Services, T-mobile Web Services, Mailchimp APIs, Zendesk APIs, Fedex, USPS and UPS APIs, Yotpo integration, Shipworks Integration, Cloudflare Integration, SOLR Integration, Endicia Implementation, Google Affiliate pixel tracking. Experience of Payment gateways like Authorize-Net, Braintree, Paypal APIs, Epay, Google Checkout, Amazon Checkout. We are able to manage large projects & known for high-quality deliverable that meet or exceed timeline & budgetary targets.
$122 AUD 在1天之内
0.0 (0条评论)
0.0
0.0
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I have worked in a firm providing security solutions that included communicating with access control devices using RS-232 communication and I feel that I would be able to help you, looking forward to with you.
$50 AUD 在1天之内
0.0 (0条评论)
0.0
0.0
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hi, i'm an expert of embedded system what are the interface serial that you're using? is it 232 or 485? i've been doing many projects about serial communication thing you must be consider is distance and baudrate thanks regards Insan
$50 AUD 在0天之内
0.0 (0条评论)
0.0
0.0
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I am VB, VB.NET, MVC, XML & MS SQL programmer. I have experience about 10 years in programming complex database application as well as Windows Desktop and Server/Client application. I will provide you some code to add your existing code that may work correctly. But milestone has to be release first to get the updated source. The milestone is non refundable.
$125 AUD 在1天之内
0.0 (0条评论)
2.0
2.0
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I am familiar with the problem of lost data when using serial ports under windows and .NET. Theres little helpful information on the internet about it, but I have developed a class that reliably allows you to use serial ports and its all c# code and multithreaded & event driven. Proven and working in existing projects. I've been dealing with serial and IP communications since around 1998 and have extensive experience with all kinds of weird and wonderful protocols and data formats. In a recent project I was able to make my class reconnect to the serial port in the case where USB RS232 port is yanked and then reconnected. Im confident I can make your project robust and reliable. Apologies, Im new to freelancer so I dont quite understand the bidding system. But sure we can work something out. Please contact me if you want to discuss further.
$75 AUD 在1天之内
0.0 (0条评论)
0.0
0.0
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Hello there Ive inapected your code , and I think that you shouldnt do thread sleeps in income handling. Also there is a special character in Rs232 transmission , that can break your text into parts on receive. I have had an experience working with C# and Rs232 connection through MDB protocol with Coinco coin dispenser and acceptors. So If you let me , I am sure I can rewrite and add some features to work your code as planned. My skype is kanatkubash . I am open to contacts if yould like to chat me before granting the project. Looking forward to work with you Respectfully Kanat
$55 AUD 在1天之内
0.0 (0条评论)
0.0
0.0

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AUSTRALIA的国旗
Edmoton, Australia
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