Back home after his trip, he built this simple Temperature, Altitude and Pressure Display Device ... The main parts are an Arduino Pro Mini clone, a BMP180 sensor and a Nokia 5110 LCD module.

It runs on an Arduino MEGA 2560 PRO (or similar microcontroller) and supports a wide array of additional hardware including pressure transducer, water level sensor, flow meter, OLED display ...

Projects like a Wi-Fi scanner, web server, weather station, and smart soil monitor are great ... If measuring the temperature ...