A meshtastic node was one of the toys of the moment last year, and since they are popular with radioamaurs, there is a chance that they are already within reach of at least one life. You can usually start from a lithium-ion or Li-Po battery, so that, like us, you played with the idea of running one out of a solar panel. It is something we have with [saveitforparts]whose experiments with a number of different solar collectors form the subject of a current video.
He has three different models: one that is based on a commercial solar charger, another that uses an off-the-shelf panel, and a final one that uses the panel from a solar garden light. As expected, the garden light plate cannot keep an ESP32 with a radio all day, but the other two managers also manage in the relatively northern areas of Alaska.
As the last stunt, he emphasizes one of the knots on a rocky piece of the Southern Alaskan coast so that every hacker passing can be found. It is quite obvious in a remote place, but it seems that passing cruise ships are within reach. We only knowledge Someone will accept his challenge and find it.