I am currently looking for the opposite of what everyone else seems to be looking for on here. I have 2 ESPHome devices that are acting as 4 binary sensors. What I need is a way that I can shorten the time between them becoming “unavailable” ( power loss, WIFI outage, destruction by God, etc), to them becoming “unavailable” in home assistant. Average time to update is less than 2 minutes but I preferably need these to “fail” more reliably. Thank you in advance for any insight that y’all may be able to provide.
You could make yourself a “heartbeat” binary sensor that turns on and off every x seconds and then monitor that on the HA side?
You could drive the heartbeat with either interval:
or the uptime
sensor.