how to send signal generated by labview to router?

[100148X]

the singal can be '0' / '1'

[NIquist]

  Can you be a "BIT" more specific please?  Does this "router" transfer data packets or cut wood for instance???

If it's the former, look into the protocols palette in the data communications section.

[100148X]

Thanks for your kindly reply. My project is to use the labview program send the command to the router. Then the router will send the command to the arduino uno + shield, which have LED on them. So, people can use the laptop remotely control the LED on/off. So, do you have any further suggestions?

[Mark_Yedinak]

Since it sounds like you are just doing some simple network communication you should not have to communicate directly with the router. The network will take care of routing your data around by itself. You will probably need to use either TCP or UDP to communicate with the adruino. You will need to get the protocol it is using to determine how to communicate with it.

[100148X]

Thanks for your kindly reply. As you said, I did some thing like this: I have a sever VI, keep sending data use TCP VIs. The client side is my arduino board (uno+ wifi shield), which can receive data wirelessly. I run both, they can successfully communicate once. At the 2nd time, the sever VI will close itself, because TCP write VI gets error 66. In VI server, I have allowed access of localhost, and IP address of my arduino. and I have tried close firewall, it still didn,t work. there are pictures about my sever VI and arduino serial monitor in this link http://forums.ni.com/t5/LabVIEW/Get-error-66-when-try-to-make-labview-program-communicate-with/m-p/2...