Do any of the Meshtastic devices have a watchdog timer pulsing on an IO?
I was thinking this might be useful for remote solar powered devices. Ive noticed during some tests that if the voltage simply drops below 3.3v the TBeam V1.1 powers down. Simply increasing the voltage above 3.3v does not power it back up. You have to physicaly break the connection to the battery and reattach it for the TBeam to power up again.
I was thinking it would be easy to build a small device using an ATTiny that could monitor the watchdog and when the battery voltage rises above the minimum setpoint it could cycle power to the Radios to power them back up.
Im not sure how likely a lockup could occure, but if the web server were to lockup, this could also trigger a reboot without having to climb a tower or a mountain to power cycle the Meshtastic repeater.