Another interesting winter season IoT project. See how you can measure Snow Depth and monitor it in real time on your Android phone with ESP8266, HC-SR04 ultrasonic and DS18B20 for sound speed temperature compensation. Read below the entire article with code examples and schematics:
Hi, take into consideration that batteries dont do so well in freezing temps:
http://data.energizer.com/PDFs/alkaline_appman.pdf
I built the same thing to measure tides a while back... but with a PIC and GSM modem since the ESP8266 didnt exist.
cool project.