Board fails to power down when LiPo voltage falls.
A watchdog needs to monitor the voltage, and issue deep-sleep to the components and then deep-sleep the MCU when battery damage becomes imminent.
The MCU still operates below 2 volts I noticed - so it definitely has this capability. Other components give up before then, so the power-down probably needs to be issued while those components are still functional enough to obey the deep-sleep message.
Board fails to power down when LiPo voltage falls.
A watchdog needs to monitor the voltage, and issue deep-sleep to the components and then deep-sleep the MCU when battery damage becomes imminent.
The MCU still operates below 2 volts I noticed - so it definitely has this capability. Other components give up before then, so the power-down probably needs to be issued while those components are still functional enough to obey the deep-sleep message.