The effect of writing and transmitting SD card data on the consistency of SD card write performance

Finished: 2020-07-03

BSc assignment

We have constructed a setup to characterize cultures of magnetic bacteria. What? Magnetic Bacteria. https://youtu.be/3uUL4ooM6KI

The long term idea is to use these bacteria to transport medication to a specific site in the human body. The setup is used to determine how many bacteria we have grown, and how magnetic they are. We do this by observing the absorbance of a light-beam through the cuvette as a function of the magnetic field. The setup is designed in such a way that it can be easily reproduced for small costs http://koreumtb.manucodiata.org/index.php/intranet/20-magod

The setup has an ESP32 microprocessor to control magnetic fields, capture the light impinging on photodetector and write data on an SD card. The ESP32 also has embedded WiFi and a second core. It is in principle possible to use the second core to read data from the card and send to the user. This would be very desirable, but would it reduce performance? This assignment is to do the implementation and evaluation.