A status for testing with 0.28.01 – after integrating to this release with the SDI-12 bug fixed and then leaving it running for two weeks, using a Verizon LTE CAT-M1 has worked very well. A deliberate characteristic of this test setup was to have a very limited solar aspect a small charge at maximum 0.5A in the morning- but the overall power usage has been pretty low. U
Any usage of the Digi WiFi/0.28.01 soon gets hungup, and I plan to look at it.
On my fork I also have a BatteryManagementSubsystem combined with a reliable delivery that have worked in combination very well.
The following picture summarizes my testing.