Application of a microcontroller Arduino in voltammetry instrument

Abstract

This technical note describes electrical circuits to utilize a commercially available microcontroller, Arduino Due, in voltammetric measurements. The microcontroller is equipped with analog input/output and serial communications interfaces. Through a suitable voltage conversion circuit, the analog output becomes usable as a signal source for the external input in potentiostat. Similarly, the external output signal from potentiostat can be inputted to the analog input. This note also describes a potentiostat circuit for the microcontroller. A compact and lightweight voltammetry instrument can be inexpensively fabricated.