PSoC-Stat: A single chip open source potentiostat based on a Programmable System on a Chip

Area of Science:

• Electrochemistry
• Instrumentation
• Open-source hardware

Background:

• Traditional potentiostats often require complex assembly and specialized equipment.
• Recent advancements in potentiostat development still demand technical expertise or costly resources.

Purpose of the Study:

• To develop a simplified, accessible potentiostat using a single integrated circuit.
• To create an open-source electrochemical device with a user-friendly interface.
• To demonstrate the device's versatility across various analytical applications.

Main Methods:

• Utilized a Programmable System on a Chip (PSoC) to integrate all necessary electronic components.
• Developed a graphical user interface (GUI) using the Python programming language for device control.
• Performed cyclic voltammetry, amperometry, and stripping voltammetry experiments.

Main Results:

• The PSoC-based potentiostat successfully performed all tested electrochemical experiments.
• Accurate measurements were achieved for Vitamin C in orange juice, glucose using a glucose strip, and lead in water.
• The device eliminated the need for printed circuit board fabrication and component soldering.

Conclusions:

• The developed potentiostat offers a low-cost, user-friendly, and open-source alternative for electrochemical analysis.
• Its design facilitates straightforward modifications for implementing diverse electrochemical techniques.
• This innovation contributes to the expansion of accessible laboratory equipment for scientific research.