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Reading a serial device from an UWP app.

Question
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(Mods please move this thread to "Developing Universal Windows Apps" section! I just chose a random one)
Hello,
how to properly read from a serial device from an UWP app? I'm trying to read data from an industrial scale; have tried every single possible solution i found on google and still have no idea what i'm doing wrong.
Can someone point me to the right direction? How am i supposed to communicate with a serial device? I have to send commands and read the received reply.
I tried using
Windows.Devices.SerialCommunication: I can find select and config my device but i can't communicate with it as i would like to. I need to send specific string commands and listen for replies, the replies might be ACK/NACK strings or a formatted string with the data i need. I can only read and write using writers but it's not what i need! I just want to send a string and read the response, simple as that! My tentative:
string selector = SerialDevice.GetDeviceSelector("COM2"); DeviceInformationCollection devices = await DeviceInformation.FindAllAsync(selector); if (devices.Any()) { // Setup DeviceInformation deviceInfo = devices[0]; SerialDevice serialDevice = await SerialDevice.FromIdAsync(deviceInfo.Id); serialDevice.BaudRate = 9600; serialDevice.DataBits = 8; serialDevice.StopBits = SerialStopBitCount.One; serialDevice.Parity = SerialParity.None; // Write with DataWrite // Read with DataReader }
The flow i'm looking for is more of "i send you this and then wait and read for the answer"
thanks in advance
noob software dev https://filipemadureira.com
Monday, December 16, 2019 12:15 PM
All replies
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Hi Fieel,
Since this thread is related to UWP, so I suggest that you can ask this question in Microsoft Q&A.
The Visual C# forum discusses and asks questions about the C# programming language, IDE, libraries, samples, and tools.
Best Regards,
Timon
MSDN Community Support
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- Edited by Timon YangMicrosoft contingent staff Tuesday, December 17, 2019 1:21 AM
Tuesday, December 17, 2019 1:19 AM -
If you want to write/read to virtual COM port, you can use System.IO.Ports.SerialPort class.
It can Open virtual COM ports, and write / read data to the virtual COM port.
But, there is a limitation. SerialPort class on UWP can't list ports using GetPortNames method. If the method was used, then PlatformNotSupportedException would be occurred.
Wednesday, December 18, 2019 2:40 PM -
I'm having an hard time navigating the forums, let alone finding the correct section.. thanks. I'll repost there.
noob software dev https://filipemadureira.com
Thursday, December 19, 2019 1:37 PM