Noise cat scarer device with with motion detection Answered
I need a cat/pet scarer device.
Main problem: Indoor housecats scratch bedroom doors during the night.
Observations: I''ve had partial success with a comercial product called "Ssscat Cat Spray Control System". It uses motion detection and a bottle of compressed air, shooting a burst of air on detection. The concept is good, but it's not easily available anymore and was a bit expensive. It seems that cats are more scared of the sound it makes than the burst of air.
Ideas: I was hoping to use a "Pyroelectric Infrared IR Motion Sensor Detector Module" and a small audio speaker to make a static sound (white noise) to accomplish a goal similar to commercial solution. A sound loudness slightly above normal talking sound would be enough. The sound legth should be about one second. Maybe two LEDs lighting at the same time would also help. I would need about 2-5 such devices. They would have to be battery operated with an on/off switch.
Could such devices be easily built from components? If so, I would need on finding the right components and instruction on building the device. I have only basic skills like soldering and tinkering, but I don't know how to design electronic devices more complicated than simple LED projects.