Simple alarm circuit help!!

E

Electronics48

Jan 1, 1970
0
Hi,

I am new to electronics and i am making a simple burglar alarm on a breadboard. It consists of a pull up button, a monostable and 2 astables and a piezo transducer. However i cannot get my piezo transducer to work properly as it will beep all the time. Could you please look at the picture attached to see if you can spot any wrong connections or anything you would recommend changing in order for it to work?

009.JPG

 

audioguru2

Apr 6, 2004
12,026
Joined
Apr 6, 2004
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12,026
The ICs have no part numbers.
Please post the schematic instead of the photo.

 
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