Note that with the “DFR” sensor, we get a signal output very close to VCC (in digital mode) when the sensor is not submerged or is in clear water (and a bit lower than that in analog mode). Here’s one ...

In this project, we are going to build a flow meter sensor and pressure sensor using Arduino and displaying it on a LCD display. Flow sensor has a rotor and a Hall effect sensor. When fluid flows ...

The Pulsemeter daemon counts the events received by the Arduino sensor and writes them into a Round Robin Database. The RRD database is accessed through the rrdcached daemon located at a local unix ...