[no subject]

When waiting for a clear powerline, the RR501 can store at least two
commands. You can verify this by sending a continuous PLC signal to block
the RR501 and sending an OFF and ON via RF. When the blocking signal is
removed, the RR501 will send both the OFF and ON signals.

Most of my testing was done using separate RF receivers and transmitters and
watching with a scope so I could be certain of what was sent and received.
I'm going to try to rerun some of them using my CM15A. With a cable from its
socket to its MCU mounted on a breadboard it makes a great test platform as
I can easily monitor signals as well as enable/disable various signals.

Charles Sullivan <cwsulliv@xxxxxxxxxxxx> wrote:

>I think the firmware in all of these X10 remotes and transceivers
>has been changed from time to time so it's difficult to make
>any definitive statements.  For example a single RF burst to
>a RR501 I have now (date code 04A03) yields a 6% dim whereas
>the same to a 1997-vintage Radio Shack lookalike or a TM751 (date
>code 04D15) yields a 12% dim.
>
>I should mention that most of the recently-acquired X10 stuff
>I have came from X10's "super deals" (which may be their way of
>reducing inventory of older-rev or prototype stock).  The HR12A
>(sends 6 RF bursts minimum) and TM751 came with the Firecracker
>"shipping-only" deal they had about a year ago.
>
>Here's some data I took, counting the RF bursts with an MR26A
>and the power line dims with a CM11A.  There are some obvious
>differences from the data you've observed with your units.
>
>              Dim level sent by
>RF           transceiver (percent)
>Bursts      RR501    CM15A   TM751*
>-------     -----    -----   -----
> 1           6%       6%      12% <== SS13A
> 2           6       12       12
> 3           6       12       12
> 4          12       15       12
> 5          12       18       12  <== CM17A "Firecracker"
> 6          17       22       12  <== HR12A PalmPad
> 7          22       25       12
> 8          22       28       24 (two 12% dims)
> 9          27       30       24
>10          27       34       24
>
>(*) The TM751 sends out one 12% dim (as reported by the
>CM11A) for every so many repeats or fraction thereof - at
>least the unit I have in hand right now labeled P10485B
>(date code 04D15).  (It's the only TM751 I've seen which has
>the firmware revision labeled on the outside.)
>
>Regards,
>Charles Sullivan
>
>
>On Wed, 09 Nov 2005 20:03:44 +0000, Dave Houston wrote:
>
>> All of my HR12A (X-10 brand) send 5 copies of the RF code with a quick tap.
>> Combination remotes (e.g. 8-in-1), the SH624 and others send a single code
>> with a quick tap.
>>
>> The TM751 will respond to 1 or 5 copies by sending 3 contiguous dims (12%).
>> It takes 550ms to send 3 contiguous dims. The RR501 will respond to 1 copy
>> with 12% but to 5 copies with 18% (733ms).
>>
>> I suspect the difference may be due to the fact that the RR501 can store a
>> code (maybe two codes) but I haven't explored this in depth. I'll try to
>> look at it using my CM15A breakout cable and a breadboard.
>>
>> Charles Sullivan <cwsulliv@xxxxxxxxxxxx> wrote:
>>
>>>It might be a difference in the remotes.  Newer PalmPads
>>>transmit a minimum of 6 RF bursts with the quickest tap of a
>>>button.  A Radio Shack branded "PalmPad" purchased about 8 years
>>>ago can be made to transmit only 1 RF burst with a quick tap.