Today we build a complete weather station for less than 50€! This weather station measures Temperature, Humidity, Wind Speed and Direction, Air Pressure, and the amount of rain that falls. I built myself the anemometer, wind flag and rain gauge, while I bought the temperature and pressure sensors, that cost a few euros. All the sensors are connected to an ESP32, which sends the data via WiFi to Home Assistant.

Video about the rain gauge:    • DIY Arduino Rain Gauge  Measure RAIN...  

All the details, the files to be 3D printed, the software part and the wiring diagrams can be found in the written guide: https://www.instructables.com/DIYWea...

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