TEMP-1: Delayed alerts with acknowledgement

[ryansch]

I've written an addon for my TEMP-1s that adds an alarm delay, alarm states, and an acknowledgement function to silence alarms for a set time.

Alarm states:

State	Description
Normal	probe within Min/Max Probe Temp
Pending	out of range for less than "Alarm Delay"; silent
Alarming	out of range for longer than "Alarm Delay"; the buzzer plays the siren on every probe reading, LED solid red
Acknowledged	"Acknowledge Alarm" was pressed; silent for "Alarm Acknowledge Duration", LED solid purple. When that expires and the probe is still out of range, back to Alarming

I'm using Home Assistant automation to allow me to acknowledge from a push notification.

Would you be interested in a PR?

[ryansch]

My use case is monitoring freezers. There are times where they're open on purpose for long enough to alert and I want to be able to quiet them while they chill back down.