MrDEB
Well-Known Member
Did some reading about frequency of hearing of deer.(2Khz-6Khz).
This could be a money maker here in Salmon as the town is over-run with deer come spring.
Them critters just stand and look at you and continue eating ones garden plants etc.
The circuit utilizes a Parallax PIR sensor # 555-28027
contacted the company to find out more about this sensor as it may be able to trigger a 555 without the transistor (was contemplating a voltage comparator circuit)
The PIR triggers the 7555 monostable that runs for 10 seconds. While the 7555 outputs for 10 seconds the 7556 runs two astable osscilators ( at 2khz and 6khz) for 10 seconds.
need to find out if usable outside, range etc.
any suggestions are welcomed.
This could be a money maker here in Salmon as the town is over-run with deer come spring.
Them critters just stand and look at you and continue eating ones garden plants etc.
The circuit utilizes a Parallax PIR sensor # 555-28027
contacted the company to find out more about this sensor as it may be able to trigger a 555 without the transistor (was contemplating a voltage comparator circuit)
The PIR triggers the 7555 monostable that runs for 10 seconds. While the 7555 outputs for 10 seconds the 7556 runs two astable osscilators ( at 2khz and 6khz) for 10 seconds.
need to find out if usable outside, range etc.
any suggestions are welcomed.