[mythtv] advice wanted - building my own remote control

[dave]

I use a Twinhan USB remote control which interfaces as a USB HID keyboard. If
I was building a remote I would be inclined to see if you could build
something that appeared as a USB keyboard device as it would give you great
flexibility in controlling anything that used keypresses. It would also give
you the chance of powering the system on an off (provide you have and can
trigger the usb wake-up).

You can by a replacement TWIn remote form $20 from
http://www.sadoun.com/Sat/Products/TwinHan/102G-VisionPlus-Twinhan-PCI-receiver.htm
but I haven;t foun anywhere to get the usb receiver from yet ......

On Wed, 09 May 2007 13:24:52 -0400, Tom Lichti wrote
> Simon Kenyon wrote:
> > Tom Lichti wrote:
> >   
> >> Simon Kenyon wrote:
> >>   
> >>     
> >>> i have the complete toolchain working for the devices that i'm using 
> >>> (Atmel AVR - ATmega88 is what i have to hand at the moment).
> >>> there is a complete, workimg gcc etc. for the device, which is a major 
> >>> plus point.
> >>>   
> >>>     
> >>>       
> >> Er, I am looking for a small (2"x2") remote with maybe 6 or so keys, but 
> >> have not been able to find one, could you build one that small?
> >>
> >>   
> >>     
> > don't
 hold your breath, but i'll give it a shot
> > might make a good test for my design/build/code skills
> >
> > there is a design from atmel which uses their attiny28 chip.
> > can handle up to 64 keys and will generate RC5 with the supplied code
> >
> > problem is that the chip needs an unusual programming method for which i 
> > don't have a programmer
> > i do for the majority of their other chips. so i am trying to adapt the 
> > design to use the chips i can handle.
> >
> > the buttons themselves are either 6x6mm or 12x12mm, so 2"x2" (ie. 
> > 50x50mm) would work with the 6x6mm keys.
> > that would leave room for the connectors around the sides of the switches.
> >
> > i have a bunch of 6x6 keys on order, so give me a few weeks to see what 
> > i can come up with.
> >   
> Sounds cool. I'm not sure what protocol I need as I want to control 
> existing devices, not a Myth box. Would that add too much complexity 
> to the design?
> 
> Tom
> 
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