Embedded Based Miniaturized Universal Electrochemical Sensing Platform

Figure 4

The sequence of the steps during the detection. According to the front page, users could choose the function to execute the procedure. Triangular wave excitation would be output to run the electrochemical system. Data would be collected by DAC which is embedded in the circuit board. The system transferred data with the use of Moving Window Denoising (MWD) method via serial port to PC or by Bluetooth to smartphone. As the data is collected from the system, a curve which is called electrochemical impedance spectroscopy (EIS) would be drawn so as to provide important information for calculating the nitrate concentration or for further study.