Arduino 2560 Not working?

[Roddy]

Hi,

I have an arduino mega 2560 R2 that I trying to communicate with labview but I can not make it work. Maybe is th program or maybe I have a fried arduino...

What I am trying to do is simple, I have a relay on D36 and I just want to be able to control it. I am not sure if I'm writting the program correctly but too set the digital write to LOW or HIGH I assume that is equivalent to say 0 or 1 for labview, right?

Thanks,

R

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One more thing to add: The L led on the board (close by pin 13) is always on, unless I hit the reset button--the it stays off. The RX led blinking for about 5 sec once I run a VI.

[Roddy]

Okay. I id corrected the situation with HIGH and LOWs so that part is solved. Now I discovered that the reason that the arduino is not working is because it is not communicatin serialy with labview. As I said, the rx, tx light blink for a couple of sec and then they stay off.

While trting to figure out why it is not working for the resource constant I selected ASRL#:INST, which should be related to the Arduino comm and it woked fine--ith both RX and TX on . Since then I haven't been able to figure how to toggle this port on/off--it seems to happen by chance.

Any ideas? Most likely is a communication issue, but for some reason I can update the 8u2 firmware.

THX

[RyanNaz]

Some of the other people around here, including myself, have had luck removing the Initialize Serial in the Initialize block for the Arduino Toolkit.

Refer to the link below.

https://decibel.ni.com/content/thread/9762?tstart=0