doctororange
New Member
Hi,
I am hoping to build a circuit to turn a standard desk light on for a given period of time, and then off.
I'd like the time to be variable, controlled by a dial, and the shot triggered by a button.
The time would be between 1 and 30 minutes.
It would also be handy to have a second button to terminate the light at any point.
Can you please point me in the right direction? I am clearly new... :0)
Can I generally replace the R1 resistor (in any of the many examples I can find on the internet) with a variable resistor to achieve this effect?
Thanks.
I am hoping to build a circuit to turn a standard desk light on for a given period of time, and then off.
I'd like the time to be variable, controlled by a dial, and the shot triggered by a button.
The time would be between 1 and 30 minutes.
It would also be handy to have a second button to terminate the light at any point.
Can you please point me in the right direction? I am clearly new... :0)
Can I generally replace the R1 resistor (in any of the many examples I can find on the internet) with a variable resistor to achieve this effect?
Thanks.
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