  Woodpeckers can cause significant damage to homes, especially in suburban
areas. There are a number of preventing and repelling methods including passive
decoys, though these may only provide temporary relief. Subsequently, it may be
more efficient to implement a woodpecker deterrent, such as motion, light,
sound, or ultrasound that would be triggered by detection of woodpecker
signature drumming. To detect the typical 25 Hz drumming frequency, sampling
periods under 10 milliseconds with frequent FFTs are required with considerable
computational costs. An in-hardware spectrum analyzer may avoid these costs by
trading off frequency for time resolutions. The trained model converted to TF
Lite Micro, ported to an MCU, and identifies a variety of the prerecorded
woodpecker drumming. The plan is to integrate the prototype with a deterrent
device making it a completely autonomous solution.
