This has been an exciting week for the team! We began the week with improvements to the microcontroller system: it is now able to read in ADC values and perform end-to-end transmission. On the mechanical side of the team, a CAD testing rig setup was printed to hold both the sensor and grease. Speaking of the sensor, to reduce the noise and decrease the size of our external circuit, the team soldered it onto a perfboard.

With a new setup, sensor testing was performed and noise roughly quantified. The sensor was able to reliably detect 4k ppm grease at noticeable levels, while lower readings fell into the noise-range of 25 to 70 mV of signal difference. Either way, the next steps for the team are the reduce and quantify the noise in our system to take corrective actions. Additionally, the mechanical side of the team is focused on designing a passive flow system and consulting fluid experts to aid in the task.