Re: Need Circuit Design -- Cheap...

Hi Jim,
This time I think I have the details together a little better,
and have included three links to the relevent parts, at least I hope
so, it took a few of those questions to see I needed to give better
details to get a better answer, I think I have those now, so here it
is:

I have three attachments to help put the entire picture together. One
is the timing in relations to events, that is, the LED coming on,
going off, and what I need the relays to do for each of the 3 possible
conditions, LED ON, LED OFF, LED Flashing, in a timing layout.

I also traced the LED pin back and found the one to the
microcontroller, so I now have a signal that is either 0VDC, 5VDC, or
a 3Hz pulsing square wave between 0VDC and 5VDC. I suspect that is the
signal to use to use.

http://people.delphiforums.com/wildbill47/X10/Full_System.jpg
Shows all of the X-10 parts, and the Relay Control I need to make,
this I think helps see what I am trying to do, which is basically only
power on the camera system when the Alarm System is Armed, that is all
taken care of with X-10 modules, the relay control is to trigger one
of the X-10 modules.

http://people.delphiforums.com/wildbill47/X10/Timing.jpg
Shows the order of events, the voltages of the control signal to
command the relays, when I want each rely to come on and for how long.
It also shows in the Top half, the events if the alarm is never
set-off while armed, the bottom half shows the details of what happens
if the alarm is set off while armed, and again shows what I want each
relay to do, when, and for how long.

I would have sent scope pictures but the pulse rate was too slow to
get a meaningful picture, I would have had to send a mpeg, but it did
show about a 3Hz square wave that was even 0V and 5VDC in pulse width
for the 3Hz.

http://people.delphiforums.com/wildbill47/X10/Relay_Ctrl_1.jpg
Is the circuit that was posted on here that was said to do what I
needed, but then that seemed to come under debate since I did not
really supply enough informationto answer the question properly.

If there is any information I am missing please let me know!

Thanks



On Fri, 24 Apr 2009 08:10:44 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@xxxxxxxxxxxxxxx> wrote:

[snip]

[snip]

As I pointed out in an earlier post, LM193,393,339 type comparators
are only valid for one input at least 1.5V below the positive rail.

So a 4V reference won't work.

...Jim Thompson

.

Relevant Pages

  • Re: Car alarm installers rant
    ... Only times I've ever seen a "problem" with a starter kill relay is when the install is sloppy and the connections poor, or when it's wired for fail-secure operation (where it breaks the connection and the alarm being disarmed re-enables the starter) and the brain dies. ...
    (rec.audio.car)
  • Re: 1997 LHS Alarm and Electrical issues...
    ... terminals SHOULD deactivate the alarm (short the two terminals in the wiring ... Do all these terminals go directly to the BCM or do they pass through anything else along the way that might be at fault (like a relay)? ... I remembered my '93 Imperial had a powered amp in the trunk so I pulled back the trunk carpet in the LHS and found a similar beast. ...
    (rec.autos.makers.chrysler)
  • Re: Help for Uber Newbie - GPS trigger
    ... notify by e-mail that there is an alarm situation. ... Someone mentioned this may be possible with an RC circuit. ... RC and a relay, so this circuit is designed with that in mind. ... The + and Gnd come from the horn relay. ...
    (sci.electronics.design)
  • Re: 2 wire vs 4 wire Smoke allarms
    ... I beliebve you are referring to the BRK model RM3 auxiliary relay. ... Once connected, if the alarm is triggered, ...
    (comp.home.automation)
  • Re: Programming a Napco GEM-P816
    ... following any keypad programming and that the PCD3000's error-check ... relay I could get to send an X10 command. ... - Zone 10 has been closed ... - Alarm sounded ...
    (alt.security.alarms)
Loading