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- Msg#: 4381 *GENERAL*
- 06/28/88 15:04:38
- From: ROBERT MCILVAINE
- To: RICHARD ANDREWS (Rcvd)
- Subj: REPLY TO MSG# 4216 (X-10 TRANSCEIVER)
- It seems to me they should also produce a device that will allow multiple
- controls points from one unit. As it is now for everthing you want to control
- you have to buy a unit.
-
-
- Msg#: 4382 *GENERAL*
- 06/28/88 15:09:11
- From: ROBERT MCILVAINE
- To: TAEGAN GODDARD (Rcvd)
- Subj: REPLY TO MSG# 4247 (BSR MODULES)
- I've found that noisy switchs on other appliances will cause false activation
- of the old brown modules. I no experience with the new tan ones, but the only
- problems I've had with the old ones is burnout or relay welding (using loads
- well within the specs).
-
-
- Msg#: 4388 *GENERAL*
- 06/28/88 19:46:22
- From: TAEGAN GODDARD
- To: ROBERT MCILVAINE
- Subj: REPLY TO MSG# 4382 (BSR MODULES)
- I'm beginning to think that my problem is specific to this one module attached
- to my TV. It went on again today - unanticipated - without anyone turning on
- an electrical device. Of course other appliances were operating at the time --
- could be a refrigerator kicking in, for instance. Then again maybe my house is
- spooked and the tan modules wouldn't help much either :-) !! (This problem
- is actually kind of fun because its only that one module anyway. It would be
- something else if I had an appliance that shouldn't be left on unattended)
- Under computer control, I really like Steve's method of sending refresh codes
- out to make sure everything is going the way it should. That not only fixes
- the problem with the old modules, it is smart programming. ...Taegan
-
-
- Msg#: 4384 *GENERAL*
- 06/28/88 16:47:06
- From: RICHARD ANDREWS
- To: KEN DAVIDSON
- Subj: X-10 STUFF
-
- . Have you seen the latest issue of Radio-Electronics? In it they have
- plans for a current carrier modem that is supposedly capable of 9600 baud. It
- seems that something like this could be used for home control (especially if it
- could be shrunk down into a smaller package); the only thing that is lacking
- is a protocol for sending information to various devices that would be
- connected to the receiving end. I wonder if anybody would be interested in
- putting forth a proposed spec for such a thing?
-
-
-
-
- Msg#: 4387 *GENERAL*
- 06/28/88 17:42:47
- From: MATTHEW ZUCKERMAN
- To: KEN DAVIDSON
- Subj: BSR STUFF
- Ken, I understand that MMint sells a home-controller that hooks up to the
- sb180 and will operate standard BSR modules. Anyway, that is what I think I saw
- in a message on the BBS this AM. If so, please send me spec sheet and cost.
- Thanks, Matt
-
-
-
-
- Msg#: 4389 *GENERAL*
- 06/28/88 22:42:03
- From: DAVID HESSLER
- To: TAEGAN GODDARD (Rcvd)
- Subj: REPLY TO MSG# 4189 (HOME CONTROL)
- taegan, a cga card driving a ttl interface DB-9 connector to an R
- RGB color monitor is solid at 80 columns, even thru a composit is not too bad,
- but into a tv is definately just forty col. no one uses it for ibm pc even
- though ibm set up for the major part of their market plans for color tv use...
-
-
- Msg#: 4399 *GENERAL*
- 06/28/88 23:12:22
- From: TAEGAN GODDARD
- To: DAVID HESSLER
- Subj: REPLY TO MSG# 4389 (HOME CONTROL)
- David, Do you have any idea how far the TTL signal is good for from the CGA
- card to the RGB monitor? I'd like to be able to run the signal through cables
- to as many as five different rooms - amplifying it as needed. OR... can I use
- the composite signal in 80 columns on an RBG monitor/TV? ...Taegan
-
-
-
-
- Msg#: 4411 *GENERAL*
- 06/29/88 07:23:19
- From: BOB PADDOCK
- To: TAEGAN GODDARD (Rcvd)
- Subj: REPLY TO MSG# 4399 (HOME CONTROL)
- The length of a cable carrying TTL signals should be meseraed in inches, not
- rooms.
-
-
- Msg#: 4421 *GENERAL*
- 06/29/88 09:12:04
- From: KEN DAVIDSON
- To: TAEGAN GODDARD (Rcvd)
- Subj: REPLY TO MSG# 4399 (HOME CONTROL)
- You can't run the TTL signal more than a few feet before you pick up noise. It
- sounds like you really only have two choices: use a 40-character display
- broadcast to all the monitors via a composite video signal, or use a terminal
- board at each display sight and transmit the data serially to each terminal.
- Trying to send an 80-column display in video form throughout the house sounds
- like a losing proposition.
-
-
- Msg#: 4442 *GENERAL*
- 06/29/88 19:13:26
- From: TAEGAN GODDARD
- To: BOB PADDOCK
- Subj: REPLY TO MSG# 4411 (HOME CONTROL)
- That's always what I had believed. I was planning to use the composite signal
- from the CGA card - but the last message seemed to indicate otherwise. Thanks
- ...Taegan
-
-
- Msg#: 4443 *GENERAL*
- 06/29/88 19:16:21
- From: TAEGAN GODDARD
- To: KEN DAVIDSON
- Subj: REPLY TO MSG# 4421 (HOME CONTROL)
- Thanks for the input Ken. I guess I'll have to stick to 40 columns. I heard
- from a friend that his brother broadcasts his video signals throughout his
- house on his own "TV station." Have you heard about anyone else doing this?
-
-
- Msg#: 4416 *GENERAL*
- 06/29/88 08:47:07
- From: KEN DAVIDSON
- To: RICHARD ANDREWS
- Subj: REPLY TO MSG# 4384 (X-10 STUFF)
- We've experimented with power line modems and had limited success. Steve had
- wanted to do an article using the NE5050, but experimentation showed that the
- error rate was so high you needed a pretty robust error detection/correction
- scheme for it to be of any use. By the time you implement the error handling
- on each node, the node becomes real expensive. The RE modems might be fun to
- play with, but I wouldn't try putting together a real product with them.
-
-
- Msg#: 4428 *GENERAL*
- 06/29/88 09:55:10
- From: STEVE CIARCIA
- To: RICHARD ANDREWS
- Subj: REPLY TO MSG# 4384 (X-10 STUFF)
- I have my doubts about the reliability of the RE circuit. It may transmit and
- receive 9600 bps but two characters sequentially? ........... or, with noise on
- the line? ......... It is not a particularily sophisticated circuit. We have
- experimented with far better circuits and I still don't think powerline
- communication is reliable except if there is never any electrical noise
- (doubtful) or both sides incorporate processor/buffer/erro r checking
- (expensive). Remember, you get what you pay for. If a circuit that inexpensive
- really worked, you'd see it commercially available with lots of competition.
- -- Steve
-
-
- Msg#: 4418 *GENERAL*
- 06/29/88 08:59:00
- From: KEN DAVIDSON
- To: MATTHEW ZUCKERMAN
- Subj: REPLY TO MSG# 4387 (BSR STUFF)
- I think you misunderstood something somewhere. Micromint sells an X-10 module,
- cable, and software that connects the computer to the power line so it can send
- X-10 commands. While the module can be used with any computer with the proper
- interface, cables and software are available for the BCC52, BCC180, and IBM PC.
- The software simply allows user programs to send X-10 commands; it is not home
- control software. I had mentioned that I'm working on home control software
- using the module and a BCC180 in my spare time, but it won't run on an SB180
- and won't be a product anytime in the near future.
-
- The module that Micromint sells is described in an article I wrote for the
- third issue of Circuit Cellar INK.
-
-
-
-
-
-
- Msg#: 790 *BULLETIN BOARD*
- 06/28/88 00:15:52 (Read 10 Times)
- From: TAEGAN GODDARD
- To: JIM KELLY
- Subj: X-10
- Hi Jim... Did you ever upload that program you wrote for your X-10 powerhouse
- in pascal? If you are still willing, I'd love to see it. I'm writing a
- program now that synchronizes the clock in the X-10 interface with MS-DOS. My
- PC's clock keeps much better time than the one in the interface - in fact the
- one in the interface is quite lousy. My program will run before I start any
- X-10 program that needs the clock. Do you have any other interesting
- programming ideas for the X-10?? If you are really into this stuff - check
- out Circuit Cellar INK Issue #3 - a really great article on computer
- interfacing with a new X-10 power line interface. Call Circuit Cellar BBS
- 871-1988 to order a back copy if you'd like.
- .
- ...Taegan
-
-
-
- Msg#: 801 *BULLETIN BOARD*
- 06/28/88 03:12:07 (Read 10 Times)
- From: JIM KELLEY
- To: TAEGAN GODDARD (Rcvd)
- Subj: REPLY TO MSG# 790 (X-10)
- Taegan, I have not uploaded the program yet. After reading your last message,
- I called the Circuit cellar and poked around there. My program is set up for
- house code J and uses ALT FKEY combinations for 4 modules. Do you want me to
- change the house code?
- ..Jim
-
-
- Msg#: 820 *BULLETIN BOARD*
- 06/28/88 19:24:57 (Read 0 Times)
- From: TAEGAN GODDARD
- To: JIM KELLEY
- Subj: REPLY TO MSG# 801 (X-10)
- No need to change the house code Jim... Are you going to include the source
- code? I'm especially interested in seeing how you drive the X-10 in PASCAL.
- If not, I understand. I'll be looking for the upload... THANKS ...Taegan
-