In this project, we learn to make aDIY Turbidity Meterbyinterfacing DfRobot Turbidity Sensor with Arduino. Turbidity is the measure ofrelative clarityof a liquid. It is anoptical characteristicof water and is a measurement of the amount of light that is scattered by material in the water when...
In this tutorial, I show how you can shift a signal from 5V to 3.3V. This is very useful if you want to connect anArduino(operates at 5V) to anESP8266(operates at 3.3V). The following Figure describes what we want to accomplish by the end of this tutorial. Method #1 – Voltage Di...