Same years ago I tested the SpuBug project.
Better to use a battery, PC USB has a lot of noise.
This was my sketch with the modified library.
Don't expect great results!
SpyBug.zip (13.2 KB)
Same years ago I tested the SpuBug project.
Better to use a battery, PC USB has a lot of noise.
This was my sketch with the modified library.
Don't expect great results!
SpyBug.zip (13.2 KB)