2.4 Data Visualizer
The next thing we need is to visualize data to calibrate sensors or something else.
Fortunatly a monitor comes with the "Atmel Studio IDE" called "Data Visualizer".
Of course it would be more convenient to have, for example a LCD to show the current values. But we don´t have enough pins on the ATMega328P to realize it. So we are reliant to the well working monitor. (Yes, of course you should use an I2C-LCD but it´s not part of this tutorial. Perhaps later.)