Weather Station
Design For years, I had been running a home-brew weather station based on PIC microcontrollers, analog temperature and humidity sensors and a BME180 pressure sensor housed in a Stevenson Screen. It worked reliably for about 6 years, until a lightning storm near-hit cooked the electronics.
I decided that it would a great time for an upgrade. In addition to temperature, humidity and pressure, I also wanted to measure rainfall, wind speed, and wind direction.