Re:Whatever happened to IoT smoke alarms?
by alkonaut on Sunday April 11, 2021 @06:01PM
(#26773869)
If there is any incidental complexity, a single additional failure mode of the core alarm functionality then the product is a bad product and shouldn’t even be approved.
Building these correctly is as simple as building a dumb alarm and adding a second product in the enclosure (a radio link). If built correctly, nothing in the smart bit can sabotage the dumb bit. For example, it can have its own power supply. Or be completely isolated from the alarm.
Others in this thread have described how they put an esp8266 or similar right next to their dumb alarm and have it report when the alarm goes off by detecting the sound. This has zero additional failure modes!
Building these correctly is as simple as building a dumb alarm and adding a second product in the enclosure (a radio link). If built correctly, nothing in the smart bit can sabotage the dumb bit. For example, it can have its own power supply. Or be completely isolated from the alarm.
Others in this thread have described how they put an esp8266 or similar right next to their dumb alarm and have it report when the alarm goes off by detecting the sound. This has zero additional failure modes!