Cheers for that. Looks like it will be easier to go with Jim's suggestion, which as far as I understand when the ignition is off the wire connected to the ignition effectively becomes an earth wire & the LED lights up.
On Tuesday, September 4, 2012 5:04:01 PM UTC+1, TomBloke wrote: > > I used a pair of 555 timers to create pulses for my central locking > depending on the status of the alarm. It sounds like you are trying to do > the opposite to get a steady-state, which you could do with a bi-stable (JK > flip-flop). You don't really need a relay to power an LED, they only need > a few mA - just do it direct from a transistor output. It is possible to > get bistable relays, but they're not cheap and it's a bit hammer to nut for > what you need. > With either solution (relay or JK) you run the risk of getting out of sync > where you end up with the flashing LED flashing when the alarm is off and > not when it's on. Have you thought about just connecting it up so it's > always on? If you mount it out of line of sight when driving it wouldn't > be a problem?? > I'm curious as to whether Jim's solution would work (if I understood him > correctly), because the switched ignition line when off isn't actually a > return path (gnd) it's more just a lack of voltage. There may be enough > leakage current to go between 12V and the switched ignition to ignite an > LED but it's not a "circuit". > > > > On 3 September 2012 23:06, Andy Cowley (Q2-379) > <[email protected]<javascript:> > > wrote: > >> Cheers Jim. >> >> Forgot to mention that it's an aftermarket central locking kit, not a >> Ford one. >> >> Also what I was wondering was, is there a relay that could have a >> permanent live feed going into it and connections from the central locking >> wiring, so that when the momentary signal is sent from the control box it >> would switch the relay "on" or "off" & power would come from the relay to >> the LED or not depending on the position of the switch inside the relay. >> >> Hope this explains what it is I am trying to achieve but being a bear of >> simple brain I don't always make myself clear. >> >> If no such relay is available then I'll wire it in like you suggested. >> >> Andy >> >> >> On Monday, September 3, 2012 9:04:03 PM UTC+1, Andy Cowley (Q2-379) >> wrote: >>> >>> My 2+2 has central locking fitted (no alarm) & doesn't have a warning >>> LED. >>> >>> I've got a flashing LED that I was going to wire in so that it came on >>> when the ignition was switched off, but am wondering whether I could >>> connect it to the wiring via a switching relay so that it came on when the >>> car was locked & went off when it was unlocked. >>> >>> Any help would be appreciated. >>> >>> Cheers >>> >>> Andy >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "Quantum Owners Group" group. >> To post to this group, send email to [email protected]<javascript:> >> To unsubscribe from this group, send email to >> [email protected] <javascript:> >> For more options, visit this group at >> http://groups.google.com/group/quantumowners?hl=en >> >> IMPORTANT NOTE: All information presented herewith is provided on an "As >> Is" basis, without warranty or the implication thereof. Neither the Quantum >> Owners Club nor the individuals associated with the Quantum Owners Club or >> in the preparation of the above information shall have any liability to any >> person or entity with respect to liability, loss, or damage caused or >> alleged to be caused directly or indirectly by the instructions contained >> within this or related message(s). >> > > -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).
