How to create a universal remote control (IR) using USB or RS232 and LV 7.1?

[bimbim]

Thank you Joe,
I'll try to do my best with this. I hope I won't have too much issues!
Have a nice day

Kind regards
bimbim

[silicolab]

It is impossible.

To create universal remocon with labview , you must have fast DAQ more than 300ksa/sec or high speed DIO board (32HS).

First  attach photo diode or transistor able to detect IR signal

Second  record the recevied signal using Labview DAQ function and Play Analog output line using IR led.

Maybe some electronic skill is required.

Alternative method is using standard audio input and output.

IR signal is basically modulated with NRZ code.

Good luck!

[bimbim]

Sorry but it's possible...

I've developped a solution that works great, based on one of the many ideas provided on the net. Nevertheless, I can't hide that a few efforts have to be done...

[ank]

Hi,

I too was planning to do the same on my laptop. My laptop has a IrDa port integrated on it. but just wanted to know the no. of bits and data transfer rate for a standerd header if ir data bust.

I hope by that calculation it is posible.

Ankur

[miguelc]

bimbim, do you still listen to this thread? I'm interested in finding out the codes of a remote I have, and thought I could create an IR receiver to plug into my serial port, then use LabVIEW to read the serial port to show the code as adigital waveform.

I'm comfortable with creating an IR receiver for my serial port. I was just wondering if you have any code you might want to share or pass along any nuggets of wisdom, since from your post it seems you eventually did find a solution.

Michael

[Ray.R]

I find myself in a similar boat...

Actually, I need to implement the solution in CVI, but doing it in LV will be a start..  Did anyone have any success?

RayR

[ank]

Dear joe,

I still have not been able to find a solution to my small hobby exercise and was wondering on how we could explore the working of a remote on IrDa ports. One idea i had was to create a database of header and command data in a microsoft database and use a LabVIEW VI with a UI of buttons as in a traditional remote to transmit this data over the IrDa port.  I am sure it is atleast possible in my case where i have a IrDa port in built on my laptop... any suggestions where can i find the table of IR data code for various manufacturers. The RC principle seems possible: http://electronics.howstuffworks.com/remote-control.htm/printable in this link refer to how a RC code is encoded for a sony system. seems like a simple RS232 derived proto...

Comments??

[Ray.R]

I was actually looking at another solution using CVI at this post: http://forums.ni.com/ni/board/message?board.id=180&message.id=35651

The device I am using has the drivers built into the unit, as with most USB devices.  So I wanted to treat it like a black box.

Maybe I should look at a different avenue such as using the IrDa port of the PC.  Actually, this one has it built into the display.  I will have to dig up whatever API might be available for it.  This could be a start.  In that case, it should support just about any IR Remote.  You could customize the buttons to do what you want (regardless of mfg codes... unless you want to control something other than a PC).

Are you trying to receive from a remote or are you trying to transmit like a remote?

RayR

[ank]

Dear Joe,

Actually, LabVIEW has some IrDa port control VIs in their connectivity panel, and so i dont need to go hunting around for the APIs incase i am using the IrDa port on the PC and its been detected by XP. The LabVIEW VIs should do the job...

I am just trying to replicate a remote control that will replace my TV remote and I need not fight for the remote when I am watching TV with my dad!

That my dear friend is the need for this innovation!

[Ray.R]

LOL!  Good idea..

I'm doing the reverse.  And actually just found drivers for it, but it seems excessively restricted...  The IrDa is called iMON/iMEDIAN from Sound Graphs.  I'll explore their website.  It is an Antec box... They sell the box with the IrDa but NO REMOTE!!!  (idiots!!)

I do have another one which is from ASUS... but sitting collecting dust.  But it is NOT compatible!!  Go figure!   -sigh - 😞

My app is to control the DVD player on my multimedia PC.  Instead of walking over to the PC (even with a wireless mouse), and select everything at the PC, then walk back to the sofa..  I want to be lazy 😉

Message Edited by JoeLabView on 05-16-2008 08:21 AM