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In lugnet.robotics.palm, Dean Husby writes:
>
> "Bluey" <Wolf_and_eagle@spamblock.yahoo.com> wrote in message
> news:Gz35x1.5t8@lugnet.com...
> > How does one compile programs for a Pocket PC 2002?
> >
> > How would I find the specifications for the IR circuitry to build
> > a program that communicates with the RCX?
>
> I have an iPAQ 3670 and use the following software with the iPAQ.
> http://www.rainer-keuchel.de/rcx/rcx.html
>
> There is no way to use the built in IR port. You have to use the serial
> tower and a nulmodem cable.
>
> It works great however, you can even download firmware!
>
> Dean
That's not true...
I've controlled my RCX, Scout, and Spybotic with my iPAQ 3635 through the
IrDA port. I used a demo version of "TV Remote Controller v3.0" from
http://www.pdawin.com.
I think those programs use the 3-wire mode of IrDA. More info here:
http://www.irda.org/standards/pubs/ircomm10.pdf
An RS-232 port with an IR LED and phototranistor should be able to simulate
a 38KHz modulated 2400bps signal by sending three bytes of 0x55 @
76800-7-N-1 (if I figured everything correctly).
Hmmm... could the iPaq serial port be set to 76800-7-N-1 and could a simple
2x4 brick with an IR LED and phototransistor be used rather than the bulky
serial tower?
I'd still rather use the IrDA port, but something smaller than the IR tower
would be a good start.
- Rob
PS - I cross-posted this response because it touches Spybotics and Robotics
with respect to communication methods.
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