Repository with files for open hardware potentiostat. This low cost apparatus allows to perform electrochemical analysis by cyclic voltammetry and square wave voltammetry. It is easily realisable and reparable. Different mounting schemes are possible. It may reach a noise level below 1 pA and a maximum scan rate of 8000 V/s. We are about to submit a scientific paper to the Hardware X journal. The files provided are : - KiCAD design files of the electronic scheme of the potentiostat (cpressed as 7z file KiCAD_files.7z) - Arduino files for use with a computer or an Android smartphone : * CV_SWV.ino for use with a compouter * swv_cv_bluetooth.ino for use with an Android smartphone (Android 4 or more) - Python files for use with a computer (to be placed in the same folder): * swv_cyclique.py is the main program to be launched * volta.py is the subprogram for voltammetry * swv.py is the subprogram for square wave voltammetry - Android application Potentiostat.apk (however if proper calibration is desired one should remake an app with Android Studio) - Android Studio project to create the application as 7z file LeCourantPasse.7z