Here’s the presentation that Kate and I gave in Jeff Feddersen’s Sustainable Energy on the second prototype for Solar Botanicalls. This version includes battery monitoring circuitry that creates a text message asking the user to change the batteries. We figured that while the plant makes phone calls when it needs something, electronics needs should be kept to an entirely separate notification system. The project has benefitted both from Jeff’s recommendations and from the results of directly testing various different PV panels.
Do you have a schematic available for the solar botanicalls II project?