2 Jan
2010
2 Jan
'10
3:17 a.m.
Patching into the doorbell circuitry to detect when it
is playing
its builtin sample is relatively easy. Coming up with a simple method
of outputting my new sample is a bit trickier. As I recall, there were
some specialized ICs out a few years back which would do just this
sort of thing. I've also considered connecting a basic mp3 player.
ISD audio chips, look for that, winbond used to manufacture them.