Hi
I have built an alarm timer circuit that is meant to work with a normall open as well as a normally closed trigger. For some reason only the normally open trigger works - I have attached a copy of the circuit diagram.
Is this circuit designed correctly, or maybe there is a better circuit I can use. Can someone please help.
Thanks
I have built an alarm timer circuit that is meant to work with a normall open as well as a normally closed trigger. For some reason only the normally open trigger works - I have attached a copy of the circuit diagram.
Is this circuit designed correctly, or maybe there is a better circuit I can use. Can someone please help.
Thanks
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