Greetings all, I’m preparing a remote deployment of my Tempest and have assembled most of the bits so it will run independently and remotely. GoalZero Nomad 10 solar panel with USB port; GoalZero Flip36 thru-charge 10,000MAh, 36WH battery with USB port; USB power splitter; TP-Link 7300 LTE WiFi router with 2300MAh batt. Assembling all of this into a plastic shoe box (with a long USB cable to the solar panel), and with the LTE router and WeatherFlow hub plugged into the USB power splitter from the main battery. The power budget for the hub and router appear compatible with the 36WH battery and the charge rate from the solar panel. The hub draws 80MA pretty steadily. The prototype works standalone in the back garden with the main battery reaching full charge before sunset each day.
I’d like to improve this by replacing the TP-Link LTE Router with a simpler router. There are several models from China that are just USB sticks with no power button (the one problem with the TP-Link is that it has a power button that no one will be present to press if the system needs restarting). Has anyone done something similar to this setup? Any suggestions to improve standalone, remote operation?
For further exploration: I’d like to use LTE-M Cat 1 rather than high-speed LTE. I haven’t yet measured the daily data volume from the hub, for a single Tempest. Anyone have an estimate (e.g. 175 bytes, once every x seconds, etc…)? Verizon offers great LTE-M Cat 1 plans from $1.50/mo per device for 1MB. At present, the best I can do with high-speed LTE is $9/mo prepaid for 1GB.
For the WeatherFlow team: Have you considered building a native LTE-M Cat 1 or Cat 2 hub? Or some other strategy for supporting a wired or wireless LTE hub/router for field deployment?
Thanks for reading