I followed a project named parasite https://github.com/rbaron/w-parasite https://github.com/rbaron/w-parasite I made a small MPPT solar harvester with a 0.47F

I followed a project named parasite https://github.com/rbaron/w-parasite https://github.com/rbaron/w-parasite I made a small MPPT solar harvester with a 0.47F supercap. This system reports soil moisture without using battery. It works even when weather is cloudy. Hope this gives you some insight.