re: Recording X-10 PLC sequences
Bookmark this page:
 Yahoo!
 Google
 Windows Live
 del.icio.us
 digg
 Netscape
|
|
||||||||||||||||||||||
|
Posted by Dave Houston on May 23, 2007, 4:59 pm
Please log in for more thread options connections to make on the bottom of the ESM1 circuit board to add a 3.5mm stereo connector for recording via soundcard Line-In. http://davehouston.net/ESM1-TEST.htm I've also prototyped a stand-alone module that does the same thing. It works with 90-250VAC and doesn't need an ESM1. There's a brief description here... http://davehouston.net/analyzer.htm Since it involves mains voltage, I think the latter needs to be sold assembled and tested rather than as a DIY kit. If there's adequate interest, I'll work out the cost, design a circuit board and see if I can find someone to assemble and distribute them. I think it can sell for $25-30 including all cables (in N. America). P.S. There's no real need for the ZC signal since the wave editors have time scales. Connecting both tip & ring to pin 18 of the ESM1 PIC eliminates the 60Hz hum. | ||||||||||||||||||||||
|
Posted by Robert Green on May 24, 2007, 5:11 am
Please log in for more thread options Nice work! > I've also prototyped a stand-alone module that does the same thing. It
works
> with 90-250VAC and doesn't need an ESM1. There's a brief description
here...
>
interest,
> http://davehouston.net/analyzer.htm > > Since it involves mains voltage, I think the latter needs to be sold > assembled and tested rather than as a DIY kit. If there's adequate I'm certainly interested in several. Will it run from a wall wart or have a built-in PS like the Monterey? > I'll work out the cost, design a circuit board and see if I can find
someone
> to assemble and distribute them. I think it can sell for $25-30 including
time
> all cables (in N. America). > > P.S. There's no real need for the ZC signal since the wave editors have > scales. Connecting both tip & ring to pin 18 of the ESM1 PIC eliminates
the
> 60Hz hum.
I'd try this mod, but I like my ESM1 - my soldering's not got enough to handle the job, I'm afraid. But I'll happily commit to whatever $75 will eventually buy! I'm assuming that there will be lots of interesting stuff that can be done to analyze the signals once they've been captured to disk. -- Bobby G. | ||||||||||||||||||||||
|
Posted by Dave Houston on May 24, 2007, 7:08 am
Please log in for more thread options
>I'm certainly interested in several. Will it run from a wall wart or have a
>built-in PS like the Monterey? It's all passive components so there's no PS. It uses the power inlet on the right in this (non-PDF) link... http://www.qualtekusa.com/catalog/ac_recept/power_inlets.html >I'm assuming that there will be lots of interesting stuff that can be done
>to analyze the signals once they've been captured to disk. You assume too much. Even the best soundcards can only sample at 96ksps which is too low for an accurate picture of the 120kHz waveform. The demodulated output will look like the ESM1 screenshots but, as it has no active components, will show all phases. The soundcard input must be limited to about 2Vpp or its built-in limiters will clip the signal so you'll have to adjust the maximum soundcard input signal level down to this level. You can later amplify it in the wave editor so you'll be able to make relative judgements of signal levels but cannot measure the absolute level. The major benefit will just be that you can record lengthy sequences to see what's actually on the powerline. X-10 interfaces only report valid codes - this gives a picture of collisions, middle-of-the-night mystery signals, etc. It's not likely to be a big seller - it probably won't even pay back the development costs. I'll provide some screenshots in a few days. | ||||||||||||||||||||||
|
Posted by Dave Houston on May 26, 2007, 2:22 pm
Please log in for more thread options nobody@whocares.com (Dave Houston) wrote:
>I'll provide some screenshots in a few days.
I've added a picture of the prototype and a screenshot of an X-10 powerline signal recorded as a .WAV file with a soundcard. http://davehouston.net/analyzer.htm This should answer whether J STATUS REQUEST is really on the powerline or not. | ||||||||||||||||||||||
| Similar Threads | Posted |
| Recording X-10 PLC sequences | May 4, 2007, 7:48 am |
| re: Recording X-10 PLC sequences | May 23, 2007, 4:59 pm |
| need wise guy ideas for special recording | May 6, 2005, 6:11 pm |
| Sound recognition (not voice) - recording instances and duration of | July 13, 2006, 7:05 am |
> connections to make on the bottom of the ESM1 circuit board to add a 3.5mm
> stereo connector for recording via soundcard Line-In.
>
> http://davehouston.net/ESM1-TEST.htm