A Canary WAP can hear a smoke or CO alarm and pass it to your Home Assistant — not by recording anything, but by recognizing the cadence every UL-listed alarm sounds. This bench runs that exact detector — the real firmware, compiled to WebAssembly — on your microphone, so you can watch it work before you own a board. Press your alarm's TEST button nearby and see the same code the device runs light up, beep by beep.
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