Re: CM17A versions - any difference?

[nobody@xxxxxxxxxxxx (Dave Houston)]

"Robert Green" <ROBERT_GREEN1963@xxxxxxxxx> wrote:

>> If you're talking about the "User RF Inputs" on p31 of the BX24-AHT
>manual,
>> I later designed a battery powered unit that uses a small 4-pin RF
>> transmitter (or even a two-wire transmitter). If I manage to get roZetta
>> working, I may again try to make the wireless ADC module available. I've
>> simplified it from my initial design and users can now configure it by a
>> serial link. I have a bunch of the 4-pin 310MHz transmitters. It's
>available
>> elsewhere in 315MHz, 418MHz & 433.92MHz.
>
>Yes - it was the latter usage I was considering.  I don't have any X-10
>universal remotes I want to cannibalize but I sure have lots of CM17A's!

The skinnier CM17A is best then. You'll need to remove the PIC (or replace
it with one of your own). X-10 uses the same RF transmitter design in all of
their products (prior to the CM15A). You can find a schematic at the FCC
site - look for one of your remotes. I know the one for the UR84A is there
(your ATI remote). While it uses a SAW, the basic circuit is the same. You
just need to supply +5V, GND & Signal.