I am interested to measure the water depth in a tank above a reference point. The water depth or pressure varies above the reference point from 0 to 2.5 meters. How can this be done in a cheapest way without buying expensive piezometers and data loggers?
I am a novie for electronics ... started building the first simplest circuits. I don't know where I can get them like the resistor, capacitor, LED.... Can anyone help me please. I live in Brussels, Belgium. Can someone knows a supplier in Brussles?
Thanks in advance.