Good day everyone...
I need a simple indoor AC-DC12v buzzer alarm to notify me when utility power is restored when I'm on generator power.
I am a newbie to electronics but I can read schematics and do soldering good. I have once searched and found the attached diagram on a blog. I got ALL exact components and connected but it didn't work. I even did twice, still didn't work.
Recently, I have been thinking, I have the 12v buzzer and a 12V adapter which I can just hook up directly to the utility mains and the alarm goes off but how to make the buzzer go for a few seconds and stop is what I can't calculate on my own.
Can anyone give a circuit which I can add between the adapter and buzzer to control the duration of the buzzer and also get it set for the next operation cycle.
Thanks.
I need a simple indoor AC-DC12v buzzer alarm to notify me when utility power is restored when I'm on generator power.
I am a newbie to electronics but I can read schematics and do soldering good. I have once searched and found the attached diagram on a blog. I got ALL exact components and connected but it didn't work. I even did twice, still didn't work.
Recently, I have been thinking, I have the 12v buzzer and a 12V adapter which I can just hook up directly to the utility mains and the alarm goes off but how to make the buzzer go for a few seconds and stop is what I can't calculate on my own.
Can anyone give a circuit which I can add between the adapter and buzzer to control the duration of the buzzer and also get it set for the next operation cycle.
Thanks.
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