Full Version: C1000 As A Ir Remote
OESF Forums > Distros, Development, and Model Specific Forums > Model Specific Forums > C1000/3x00 General discussions
Is this Possible???
If I understand the situation correctly, no it's not possible. On the SL-5500 you could actually get access to the IR transmitter in a sort of "raw" mode, allowing you to actually turn it on and off manually in a way that made it behave like a TV remote. On the SL-Cxx00 hardware, even the kernel can only address it as a serial port. If I'm wrong or if the situation has changed (since 2005 or so, when I last looked at this), I would love to hear about it. 
-John
-John
My guess is that the IR pin on the C1000/3x00 is connected to a UART pin, which means it would normally be forced to play a serial function. However, the PXA processors are very configurable, so it might be possible to change the function to a general purpose input/output pin - and as a GPIO you could bit-bash an infrared controller.
My guess is that a bit more googling with some of the terms above might yield results!
I've asked on the Angstrom list as there are kernel hackers there who'd know.
My guess is that a bit more googling with some of the terms above might yield results!
I've asked on the Angstrom list as there are kernel hackers there who'd know.
I just found this page. Scroll down to point #9
links are included on that page for "remote extender" and "opie-remote".
EDIT: opps, the remote extender has been discontinued, but opie-remote should work if you are close to your TV set or IR receiving device.
http://quickening.zapto.org/Zaurus.html
I have a Palm Zire 72, which works very well with an aftermarket remote control software, so I haven't tried opie-remote on my Zaurii.
links are included on that page for "remote extender" and "opie-remote".
EDIT: opps, the remote extender has been discontinued, but opie-remote should work if you are close to your TV set or IR receiving device.
http://quickening.zapto.org/Zaurus.html
QUOTE
9. Altho the Zaurus has an IR port it is too weak for remote control. No problem! I bought the Remote Extender from smarthome.com. With it, I can use my Zaurus as a universal remote control from anywhere in my house. I used Thomas Steven's opie-remote software and configured support for my reciever, tv, vcr, tivo, and the hdtv, dvd, winamp, realone, media player, and browser on my HTPC
I have a Palm Zire 72, which works very well with an aftermarket remote control software, so I haven't tried opie-remote on my Zaurii.
Stanislav Brabec answered my query on the angstrom list...
in short, yes!
Paul
QUOTE
> does anyone know how the IR port on the '000 series is connected - I
> presume it's a pin on the CPU, but can it be redefined as a GPIO pin
> and thus could this Zaurus be used as an IR remote control?
I guess you will get into problems at least with transmission distance
and very probably with modulation frequency.
IrDA module is probably something like Sharp GP2W0150YP0F: SIR LP
115.2 kb/s, transmission distance 20cm.
Any special function GPIO pins of PXA270 can be repurposed as an
ordinary GPIO.
For more see Intel® PXA27x Processor Family Developer’s Manual, section
General-Purpose I/O Controller
Rx:
GPIO 46
Tx:
GPIO 47
IR switch:
machine_is_borzoi() || machine_is_spitz():
xxx_scoop_gpio((&spitzscoop2_device.dev,SPITZ_SCP2_IR_ON);
machine_is_akita():
akita_xxx_ioexp(&akitaioexp_device.dev,AKITA_IOEXP_IR_ON);
> presume it's a pin on the CPU, but can it be redefined as a GPIO pin
> and thus could this Zaurus be used as an IR remote control?
I guess you will get into problems at least with transmission distance
and very probably with modulation frequency.
IrDA module is probably something like Sharp GP2W0150YP0F: SIR LP
115.2 kb/s, transmission distance 20cm.
Any special function GPIO pins of PXA270 can be repurposed as an
ordinary GPIO.
For more see Intel® PXA27x Processor Family Developer’s Manual, section
General-Purpose I/O Controller
Rx:
GPIO 46
Tx:
GPIO 47
IR switch:
machine_is_borzoi() || machine_is_spitz():
xxx_scoop_gpio((&spitzscoop2_device.dev,SPITZ_SCP2_IR_ON);
machine_is_akita():
akita_xxx_ioexp(&akitaioexp_device.dev,AKITA_IOEXP_IR_ON);
in short, yes!
Paul
I stand corrected! 
QUOTE(JohnX @ Dec 6 2007, 09:33 PM) 
I stand corrected!
You may stand corrected, but if the 20cm estimate is accurate, you might as well just hit the buttons on the receiving device with your finger. 20cm = 0.2m = 7.9 in. Kind of a shame, really. I think the Z could support a pretty cool universal remote control app.
It's a shame that this item clearly indicates that it's a proprietary card.
EDIT: Found this one, which appears to still be in production. I wonder if the company (which seems to be having the device manufactured) would be willing to cough up with specs?
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.