I'm missing component values and schematics for the two circuits so how can I tell what they are doing?
(I don't read circuits from breadboard layouts and my psychic abilities are sadly lacking in that area. )
(And why are there two circuits?)

The circuit is designed to provide a pulse to a solenoid, not light an LED.
The LED lights with the small current going through the resistor, but that small current won't keep the solenoid energized.

It's not designed to provide a delay when you push the button.
Why do you think it would and why would you want a delay?

Hello Crutshow,
The values are as your sketch
R=3K3
C=470 Ohms

I used the LED as I couldn't find a solenoid

x2 circuits ...
a) Radial capacitor - polarised?
b) Ceramic capacitor - Non-polarised?
Wasn't sure if they made a difference

As I said before, I struggle with understanding the sketch, a breadboard allows me to 'test' first

The delay is explained above ...

Maybe, I will try to wire up the door bell as your sketch but wanted to prototype it first virtually

*** confused ***

 

The circuit is not mine.

That should be C = 470μF
I doubt that you have a ceramic capacitor that large.
If the capacitor is electrolytic then it is polarized.

I see no explanation of the "delay" you expected.

 

The circuit is not mine.

That should be C = 470μF
I doubt that you have a ceramic capacitor that large.
If the capacitor is electrolytic then it is polarized.

I see no explanation of the "delay" you expected.

Ahh yes, my mistake ...
470μF not Ohms (that'll be a resistor value!)
I'll take another look tonight
Thanks

 

Just let the 555 pulse the door bell, use a simple monostable timer circuit, door push operating the 555, and that fires a relay for say two seconds. Use the circuit on the right...


View attachment 124909

Hello Dodgydave,
Been doing some research and this request has already been asked by ameripip3 and answered, by yourself
https://forum.allaboutcircuits.com/threads/timed-power-cut-off-relay-help.108177/
I have copied the circuit but doesn't seem to work - attached diagrams ... Post #108177 and mine
Can you confirm they do the same thing?
I have compared for well over and hour now and to me they are identical!
HAHA
The OP never did come back and say whether it worked for him

 

Yes they are both the same, your timer will give a pulse out for the time of Rtime x Ctime x 1.1

Try making the 4M7 resistor 100k, this is just for the trigger pulse.

You need to get a dvm and check voltages.

 

Yes they are both the same, your timer will give a pulse out for the time of Rtime x Ctime x 1.1

Try making the 4M7 resistor 100k, this is just for the trigger pulse.

You need to get a dvm and check voltages.

Hello DodgyDave
FYI - did it .. with a little bit of help from my friends ... https://www.tinkercad.com/things/ag...=w5OAuD5sNykbj5RUQpUohWULHzk1luiGQxlIgHrQi8I=

 

Hello DodgyDave
FYI - did it .. with a little bit of help from my friends ... https://www.tinkercad.com/things/ag...=w5OAuD5sNykbj5RUQpUohWULHzk1luiGQxlIgHrQi8I=

Are their names Smith and Wesson?

 

Are their names Smith and Wesson?

lost me there!
How do you mean?

 

Do an internet search of those names. They prevent people from ringing your doorbell and a number of other services.

 

Do an internet search of those names. They prevent people from ringing your doorbell and a number of other services.

Haha!

 

Hello chaps,
Decided to ditch the Resistor and Capacitor idea and go for an Arduino Nano and a 5v relay
The ‘code’ will run the kit
The Nano will open and close the relay
The relay will ‘open’ & ‘close’ the pixies to the doorbell
In my head it works but I don’t know how to code the Nano
Is there anyone kind enough to point me in the right direction or even write the code?
I have looked at the examples but it is as confusing as hell!

Thanks in advance
Guinness

 

Just use a 1,000u in series with the push button and 1M across the 1,000u