Questions around false triggering with wired smoke detectors

Hardware
1

I’ve got a bunch of wired smoke detectors feeding into an ESP32 digital I/O module that connects to HA via MQTT and is handled in HA through Alarmo. One of the sensors, in the room I’m sitting in, apparently just caused a triggering of Alarmo:

alarm_trigger
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No smoke, humidity, nothing. Also the sensor itself never triggered (flashing LEDs, beeping), just the alarm input.

I have accidentally set the sensor off in the past with fly spray, the sensor beeped and the LEDs flashed, then stopped again a few seconds later without triggering the alarm. In this case the alarm input was triggered without the sensor indicating that it had been triggered.

Trying to understand the details of this, is there a delay in the sensor to reduce false triggering where it needs to remain triggered for several seconds before it indicates triggering on its outputs? And given that the sensor never indicated it had been triggered, is the fault likely to be in the ESP32?

2

For anyone else who’s run into this, here’s the solution in another thread. Or at least it’s a solution, not necessarily the solution.