So, firstly, I decided to use the DHT11 and BMP180 to measure temperature. for measuring precipitation, I designed a pluviometro, a little bucket with a magnet, and a Hall effect on the other side that detects when the bucket spills out. For measuring wind, I designed an anemometer that works like the pluviometer, but instead of seeing if the bucket spilled out the water, it measures the revolutions. I used a Raspberry Pi Pico W to send everything to the app, and finally, to power everything, I used an 18650 battery connected to a 6V 2W solar panel. For the structure, I used some 25mm PVC pipes and some 3D printed parts in PETG.