This simple water level indicator will activate an active buzzer (e.g. BeStar BPT-23CX ) in order to make a noise when a certain level of water is being reached. Because the water sensor and the ...

XKC-Y26-V Contactless Liquid Level Sensor Pinout The XKC-Y26-V sensor has a total of 4 pins. Two power pins, one mode select pin, and one output pin. The pinout of the module is as follows: VCC ...

Although simple in theory – an air bubble and conductive liquid sealed in a chamber surrounded by electrodes – electronic levels are more complex in practice. If the liquid is an electrolyte, it needs ...