Hi,
I know i should be doing my own research on how to make this - but i tried before (with a thrmister and a relay) but failed.
The kettle is very unsafe at the moment as it does not switch off when it boils.
Its very easy to forget it is on because as it boils it goes silent (the water i mean)
It runs on 230 Volt mains electricity.
I have timed the amount of time it takes to boil the kettle with the usual amount of water in it -
Exactly 3 Minutes...
Can I maybe make a timer that will switch the mains source off at that time?
something like this...
(where it says wire - thats the wire thats from the plug to the kettle (both sides of the 'timer') that is already part of it)
MAINS -> WIRE -> TIMER -> WIRE -> KETTLE
the reason for that is so any circuit is not inside the actual kettle where it could get wet (even covered with plastic).
what i need help with is how do i make the timer that can count 3 minutes and then switch mains electicity (230-240 V) off and stay off until the wall switch is turned off and on again - but will then reset itself when switched back on at the wall.
I was thinking maybe putting a latching relay as the on/off/on part.
(it doesnt HAVE to be a timer if anyone has a better idea)
I was thinking maybe using a 555 timer chip (or simular) to switch a transister to switch the relay - but i dont know how to actually put that together (without some help)
If anyone could help me do this it would be a life saving event (or at least a kettle/electricity saving event anyway lol!)
--- Sorry for the all over the place post ---
Thank you for any help anyone could offer.
Timez
I know i should be doing my own research on how to make this - but i tried before (with a thrmister and a relay) but failed.
The kettle is very unsafe at the moment as it does not switch off when it boils.
Its very easy to forget it is on because as it boils it goes silent (the water i mean)
It runs on 230 Volt mains electricity.
I have timed the amount of time it takes to boil the kettle with the usual amount of water in it -
Exactly 3 Minutes...
Can I maybe make a timer that will switch the mains source off at that time?
something like this...
(where it says wire - thats the wire thats from the plug to the kettle (both sides of the 'timer') that is already part of it)
MAINS -> WIRE -> TIMER -> WIRE -> KETTLE
the reason for that is so any circuit is not inside the actual kettle where it could get wet (even covered with plastic).
what i need help with is how do i make the timer that can count 3 minutes and then switch mains electicity (230-240 V) off and stay off until the wall switch is turned off and on again - but will then reset itself when switched back on at the wall.
I was thinking maybe putting a latching relay as the on/off/on part.
(it doesnt HAVE to be a timer if anyone has a better idea)
I was thinking maybe using a 555 timer chip (or simular) to switch a transister to switch the relay - but i dont know how to actually put that together (without some help)
If anyone could help me do this it would be a life saving event (or at least a kettle/electricity saving event anyway lol!)
--- Sorry for the all over the place post ---
Thank you for any help anyone could offer.
Timez
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