Cannot write serial Arduino

Hi guys, I develop a project requiring Labview to interface with Arduino Uno, but no matter how to change the connection, my series write Dungeon works bad, when I click on the button "Home", the Rx led on the Arduino is flashing which indicates having received something, but my gear didn't get no action at all, so guys help me please check if my connection on the pallet of Scripture is correct or not. Thanks in advance!

They are not your problem, but a few general remarks:

1. the outter loop and case structure are unnecessary.  Just remove them.  When you run your VI, you will be connected.  This will make things easier to see (less noise).

2. almost all the code I've seen with an Arduino uses the PrintLn function, which adds a termination character (line break) to the post of series.  I highly recommend you use this, turn on the termination character using LabVIEW code and then get rid of the bytes to the Port.  Suffice to say the VISA readings to read more bytes than the longer message of your Arduino.  Playback stops when they find the line break character.

3. maybe your problem: the Arduino expects to see a line break at the end of the string it receives?

Tags: NI Software

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