I am trying to develop a 555 timer to turn a Peizo buzzer on for approximately one second every thirty seconds.
The attached circuit matches these requirements close enough, except that the output is ON for 95.8 percent of the time. I need it to be OFF for 95.8 percent.
I think a simple one transistor inverter can be put on pin 3 to drive the Piezo buzzer but I don't know how to design it.
I would appreciate any hellp you could give me.
Thanks
The attached circuit matches these requirements close enough, except that the output is ON for 95.8 percent of the time. I need it to be OFF for 95.8 percent.
I think a simple one transistor inverter can be put on pin 3 to drive the Piezo buzzer but I don't know how to design it.
I would appreciate any hellp you could give me.
Thanks
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