A well-equipped electronics lab is full of power supplies, measuring devices, test equipment and signal generators. In addition, there are tools, components and the many assemblies and projects that you are currently working on. It can get crowded in the lab. Wouldn`t it be better to have one compact device for almost all tasks? All in one, small and versatile, and also inexpensive and easy to procure.After several attempts with other systems the choice fell on the Arduino Nano. On this basis, a PC interface as versatile as possible for measurement and control is to be developed. It simply hangs on a USB cable and, depending on the software, forms the measuring head of a digital voltmeter or PC oscilloscope, a signal generator, an adjustable voltage source, a frequency counter, an ohmmeter a capacitance meter, a characteristic curve recorder and much more.The circuits and methods collected here are not only relevant for exactly these tasks in the electronics laboratory, but many details can also be used in completely different contexts. Often one encounters complex tasks in the field of measurement technology during development work with microcontrollers. In many cases, the methods from this book can then be used. You have a starting point and can develop the software in the desired direction.

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