Most modern test and measurement instruments are nothing more than a microcontroller supported by special signal processing circuits and a nice display. The Arduino UNO board too is based on a microcontroller and features analog and digital inputs. It can therefore be used at the heart of a measurement instrument. Even if it lacks special signal processing circuits, it can be very useful in many situations where signals are not superfast or where ultrahigh precision is not required. Instead of investing in an expensive all-singing, all-dancing oscilloscope, it is often enough to write a few simple sketches, learn a few tricks and know your way around a spreadsheet.

Everything Is a Voltage, Even a Current

In electronics probably everything you want to measure can be converted into a voltage or a current unless you have very special needs. There are sensors for almost everything. Microcontrollers with built-in analog-to-digital converters can measure voltages. A current can be converted into a voltage, and therefore microcontrollers can also measure currents.

Test & Measurement With an Arduino UNO

In this webinar we present a collection of techniques, methods and tricks for measuring signals and testing hardware with nothing more than an Arduino UNO board and some basic sketches. This shows that for many measuring jobs you don’t need expensive equipment.