Morse code in LabVIEW

[Somil]

Hi

i need to transmit simple text from my PC to another PC through RF.

How can i generate and decode the Morse code in LabVIEW?

[Baji]

Hi

I am Balaji (VU3 PQT) . Please Check the links, hope it helps.

http://www.ni.com/swf/flv/labview/us/vista/vr/

http://zone.ni.com/devzone/cda/epd/p/id/4401

[Somil]

Hi balaji

Thanks a heap for the reply

Actually, I didnt get what exactly you are trying to say through these links. i want somthing like this.

[Somil]

How can i use the above attached morse code.exe in labVIEW through ActiveX?

[wd8ivl]

I'm guessing this is a school project.  (I never had neat projects like this when I was in school).

I didn't look at the Actixe-X, but I guess I'd start by making a look-up table where each of the letters would be represented by their Morse code equivalent using dots & dashes.

 

Morse code has a standard timing to it - a dash is three times as log as a dot...etc. On the transmit side, I'd use the PC's sound card to generate a tone based on this look-up table and the timing parameters.

On the receive side, I'd plug the speaker out from the other PC into the sound card line in. The program would sit in a loop and wait for the tone, and based on the timing, know when a character was completed, look it up and display it.

_ _ . / _ _ _ / _ _ _ / _ . . . _ . . / . . _ / _ . _ . / _ . _

Mike

[Somil]

HAHA

nah, this is not a school project at all.

Actually, i want to communicate between two PCs wirelessly through RF. So , firstly, i wanted to start with something simple.

The loop thing can be done but i need to set many parameters too. This is from the transmitter side. What about the Receiver side? Need to set the frequency and all

[wd8ivl]

Somil,

Sorry, I missed the wireless part...

I'm sure LV has VIs that will look at the sound card for a specific tone & give you a true when it sees it. 

But I would think there'd be a way to do it with a wireless router & a couple of wireless NIC cards...

Mike

[Dennis_Knutson]

Wireless communication with morse code?

Maybe we should start a Rube Goldberg thread for hardware.

[wd8ivl]

Dennis,

1000's of hams already do it every day...

Mike

[Dennis_Knutson]

But why not use something off the shelf like you mentioned?