Without getting bogged down with the actual data, I wanted to share my excitement about the preliminary results from Boron LTE’s on Solar. Keep in mind, no Stop or Sleep Modes are available in 0.8.0-rc.25. These are just a baseline (Online 24/7, Publish every 5 minutes) for later comparison once we have low power modes.
I’m running 2 field trials:
- Boron LTE, 2-watt Solar Panel, 2,000 mAH Li-Po (same that ships with Electron)
- Boron LTE, 1-watt Solar Panel, 5,000 mAH Li-Po
As mentioned, Both Borons are constantly Online and publishing SoC and Li-Po Voltage every 5 Minutes. Solar Panels use the USB connector.
They spend ~16 Hours through the night & early morning without any Recharging from the Solar Panels.
The 2,000 mAH Li-Po “reported” SoC drops ~26% over those 16 hours.
The 5,000 mAH Li-Po “reported” SoC drops ~12% over those 16 hours.
The Li-Po’s are recharged with 1-2 Hours of Sun.
No scheduled publishes are missed, they are very reliable at my test location.
When the various Stop & Sleep modes become available, the Boron LTE will make a great stand-alone Field Device on Solar. We can use smaller Batteries and Solar Panels than required for the Electrons.
A 1-watt Solar Panel isn’t any larger than the smallest weatherproof enclosure I’d normally use for the IoT device itself.
Question: I tried using
Mesh.off() in setup(), but that didn’t lower the measured current at all. Any ideas or suggestions there ?