09-18-2009 04:25 AM
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?
09-18-2009 04:43 AM
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
09-18-2009 04:51 AM
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.
09-18-2009 05:21 AM
How can i use the above attached morse code.exe in labVIEW through ActiveX?
09-18-2009 06:28 AM
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
09-18-2009 06:44 AM
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
09-18-2009 06:55 AM
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
09-18-2009 09:24 AM
Wireless communication with morse code?
Maybe we should start a Rube Goldberg thread for hardware.
09-18-2009 09:29 AM
Dennis,
1000's of hams already do it every day...
Mike
09-18-2009 09:33 AM