Can these HP IR Thingies be used ??

Raas · 07-09-2002, 07:59 AM

Hi,

At work we have a bunch of these HP IR devices
They connect to a printer and then can be used to send data wireless to the printer..

Now my question is, Could these thingies be hacked/used for carputer use ??? ie.. one wouldn't have to make a IR-Receiver ???

All opinions are appreciated !!!

Greetz,

MP3DUB · 07-09-2002, 11:38 PM

Ill take them if you dont want them

. but with out knowing how they transmit their data, what chips they use, making your own driver for something like girder, i dont know if they'd be hackable in their existing form, you might be able to get useful parts from them (ir reciever, etc). or you could ship them to me so i can print from my visor

tation · 07-10-2002, 09:56 AM

IF you get em working let us know. I have a few here also.

eugenen · 07-10-2002, 09:39 PM

They are an industry standard IR port. Back when IR was just coming out a lot of the HP/Compaq/IBM business machines had a port on the back that these would plug into. IR kind of died except on laptops so they don't have them too much anymore, but HP was pushing IR on their printers a year or two ago and used the same standard part. I'm pretty sure the circuit inside will work with the IR header on most standard MB's you will just need to open one up and ohm out the pinouts, then connect it to a MB. I used to have a couple but left them at the company when I left otherwise I would figure them out for ya.

Raas · 07-11-2002, 08:10 AM

Ok..
I openend one..
This is what the guts look like...

Raas · 07-11-2002, 08:14 AM

And another one..
this time much closer to the pcb.. you can see the wires/pins I measured the resistance.

I figured out the yellow one is the ground.. so I have measured the resistance on all other pins/wires..

Going from left to right.

Pink 0.425 ohm
Green 0.216 ohm
Blue 0.255 ohm
Yellow - Ground
White 0.263 ohm
Orange 0.255 ohm
Purple 0.204 ohm
Black 0.263 ohm

What next ?? (cause I really don't have a clue... )

Thanks in Advance,
Greetz,

eugenen · 07-11-2002, 09:17 AM

I guess I should have been clearer when I said ohm it out. I was meaning ose an ohm meter as a continutiy tester to see which wire on the pcb went to which pin on the small ps2 like connectpr that plugs in the printer. I think I can dig up the pinouts of the printer connector in an old tech manual, then knowing where they connect on the pcb we should be able to cut the connector off and connect it to a standard mb ir header.

Raas · 07-12-2002, 07:36 AM

Oh.. I'm sorry.
misinterpreted the post.
I will 'ohm it out...' but It'll have to wait for 2 weeks..
today, I'm going on holiday, so I don't think I have the time to check the board.
I will post the results in two weeks then.. If you still want to help !

Greetz, and thanks for your help !

Raas · 08-06-2002, 03:59 AM

Hi,
Sorry for the late reply, but I just got back at work today and I opened my drawer and kwew what to do..

The picture that is attached is the connector with the pins numbered..

I tracked the pins down to the pcb.

Connector - PCB
___1_____-Orange
___2_____-Purple
___3_____-Brown
___4_____-Blue
___5_____-Yellow ( mass, also surrounding of connector)
___6_____-White
___7_____-Roze
___8_____-Green

Eugenen.. I hope you can do something with this..
Thanks in Advance,

Greetz,

marsjell · 08-06-2002, 07:45 AM

heej raas,

looking at the picture, the one which shows your components, it looks like it's using a HSDL-1000 or 1001 irda transciever. look on the back of this component (the one with the two lenses).

If this is a hsdl 1000 or 1001, and your Mobo has an irda header then your "problem" is solved. this little thingy has everything you need inside all you need to add is a resistor and 2 or 3 capacitors. I've been searching through all my crap but haven't been able to find the schematic I used. I did find this http://literature.agilent.com/litweb...988-1772EN.pdf
have a look.

I'll search my crap some more when I got a more time...

Raas · 08-07-2002, 06:24 AM

Heeeeej Marsjell.. (alles goed?)

The back of the lenses says "A 1100 0009 *"

The other 2
"TL 74HCO4D C7438PL Hnn9940D" and has the "philips" sign on it

"EPO1AB DS9OLV019 TM"

I hope it's the same as you meant..

Greetz,

marsjell · 08-07-2002, 06:45 AM

hm mine says A 1001 1006...

maybe you should search for hdsl1001...

if you have a lot spare, you could simply try my schematic (have to draw it first and get the components out of the scrinkwrap)...

let meknow!

Raas · 08-07-2002, 09:23 AM

/me wants to try your schematic !!!
hehheheheheheeh.

Raas · 08-09-2002, 07:29 AM

Marsjell,
After reading through the link you posted this is a HSDL1100
(actually, the case has "FIR 4mbps" printed on)

So I'm gonna try my luck on google or something...

Greetz,

EDIT
I might have found something on http://www.infraredport.com/ir-modul_en.HTML this uses the TFDS4500 which I think is the same as the hp module has...
only ad a 15ohm resistor to it, and your set..

Or... am i missing something ??

Greetz

marsjell · 08-12-2002, 04:04 AM

I don't think your missing anything, I haven't had time to unwrap my transciever, but I know it only uses 1 resistor and 4 caps... I'll unwrap it today and let you know