Embedded Based Miniaturized Universal Electrochemical Sensing Platform

Figure 2

The schematic diagram about the detailed executing procedure of the embedded sensing platform. () The box sent the command to control the DAC module so as to generate sweeping triangular waveform. () Sweeping voltage transfers to the electrochemical system for testing. () ADC module transfers the voltage that is generated by the sensor to digits so the system can identify the data. () Test data will be stored temporarily in the memory of the embedded system. ((5) and (6)) Serial port reads data from memory and sends to PC. (7) PC stored the data and calculated the results. ((8) and (9)) Data is transferred by Bluetooth from memory to smartphone. (10) Users can share the information about the testing results, like the nitrate concentration, to the network such as Weibo.