How to read gps data from serial port c#

So, when the Java code is running, it throws 'n' Exception before read something, and this couses so much lag. I know I need something like Serial. I don't know how to solve this problem. If you have a code that working, I'd be so much grateful if you could give it to me. I just need two methods, read and write, I don't care how the code works :D. It print the values correctly but data '' is always false, even if I really get a I tried to do Integer.

Why the hell? You don't want to specifically write a read function it's already there in the sample code.

As TheMerovingian pointed out you can check the input Buffer before reading. Here is the working code which I have used in one of my projects. Some devices will send data without being prompted. However, some devices need to be send certain commands, and it will reply with the data that the command calls for.

For these devices, you will write data to the serial port, and use the previous code to get the data that will be sent back. In my example, I will be communicating with a scale. This command is specific for this scale. You will need to read the documentation of your serial device to find commands that it will receive. To write to the serial port, I have created a "Start" button on the form.

And that is all you need to do. I have attached the Visual Studio solution. Read buffer, 0, buffer. Example 9. File: Alarm. Process pr; System. Process ; pr. WriteLine "Something moved! Example ToString ; message. Clear ; syncEvent. DiscardOutBuffer ; serial. File: SerialPortThread.

BytesToRead; while count! Sleep 1 ; Thread. File: Sensor. One ; serialPort. Write buffer, 0, buffer. Read inBuffer, 0, inBuffer. File: Main. One ; port. Open ; System. Min bytesAvail, rxBuf. File: Reconnect. Sleep ; if serial. WriteLine "Oops! WriteLine e. Message ; Console. One ; serial. GetBytes Shadow ; serial. Write TxBuff, 0, TxBuff. Read TxBuff, 0, 1 ; serial. File: ConsoleRead. Read buffer, 0, bytes ; decHand.

Length; if watch. Stop ; Console. Remove commNum ; DetectPortThread. Remove portName ; connection. Read bytes, 0, bytes. Write bytes, 0, bytes. Length ; led. Print counter. ReadLine method but be sure you set the port. NewLine property to correspond to whatever newline character or character series your device transmits. Or you could use the port. ReadTo method and specify the string you are looking for. Are you getting any data at all? If not find out what type of handshake your device requires and set the port.

Handshake property to match. In GetGpgga you don't appear to wait for data to be received - I'd expect something more like untested :. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to read GPS data via serial-port in C?