But Im having difficulties, from the one that I attached, at the bytes at port, I dont know where to put if it is true.I have things wanted to get helped with, and I changed most of my projects sendingreceiving.I programmed node A and node B in this way: 1) node A sends a C which will be received by node B, afterwhich node B sends temperature data (3 temperature data), node B then sends D which will be received by node A, then sends temperature data (3 data) 2) For me to be able to determine which of these data is from node A or node B, I added a character.
Example, temperature from node A is 33.50, node A will send A33.50, while node B say 33.25, it will send B33.25 3) I was able to remove those indicator, and put them in their designated values to be. Problem: When I continuous run I receive these following data after removing A and B: 3 33..2 30 BUT when I Highligh Execution, it gives me a normal data like 33.25 30.00 33.75 Sorry for posting too many questions. Hope someone can help me with this one last thing. Thank you. Your VI is running so fast that it is reading mid transmission and getting partial data packets from your devices. You could fix this by reading as you are now and then buffering the data until you get 4 bytes and then process it. This method is used in LINX and there is a handy little Wait For Bytes VI that you can re-use. You just tell it how many bytes youre waiting for and how long you want it to wait before timing out. What I need to do here is put a delay time You could add a wait before reading to wait until the required number of bytes is available. The Arduino sends data as fast as it likes and LabVIEW reads as fast as it likes. Labview Visa Read Termination Character Serial Port MuchLabVIEW running on the PC can run much faster than the Arduino so we can make LabVIEW check how many bytes are at the serial port much faster than the Arduino can send bytes. So well let the Arduino send at whatever rate it wants and well use LabVIEW to ensure we read whole packets only. The LabVIEW program will check how many bytes are available at the serial port. Once the bytes available are greater or equal to the expected packet size read exactly one packet (no more, no less). Process the packet (update graphs, log data, whatever you need to do) and then go back to polling the bytes available at the serial port until you have another entire packet. Also since youre sending binary data as ASCII characters make sure you set the Enable Termination Character on the visa configure serial VI to false. If you dont do this it treats the carrage return and line feed characters (0x0D and 0x0A) as an indication that the transmission is done.
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