I have a bunch of hardware from SwitchDoc Kickstarters, and I'm looking to hack together a monitoring station for a fully off-the-grid site. I would like to co-locate the Raspberry Pi with a SolarMax2. I'm wondering if the SkyWeather2 HAT, with the Pi, could be used in place of Grove MiniProPlus board to allow wired collection of data from the SolarMax2. Further, could this HAT, together with the SolarMax2's transmitter board, be used to receive signals from the WeatherRack2, and other system sensors?
1) I suppose you could redesign the SolarMAX2 to use the Pi to collect the data. However, there are more things the MiniProPlus board does (see the code) than just collect and transmit the data. It's a project.
2) No, you need an SDR on the Pi to demodulate the information. You could do a project to demodulate the data on an Arduino similar to this: