Testing and Evaluation

We gathered all of the data from our testing and compiled it here. We tested different parts of the bottle separately before ensuring they worked together. This also helped us to not get behind in the process. We also included additional photos that we had of the testing.

We put the capacitors in beakers first because at this stage we were still developing the bottle body. We would pour increments of water into the beaker with the capacitor to see what values it sent to the computer. Once we got it to read consistent values, we did the calculations for it to be more accurate.

We connected the temperature sensors to the Arduino which was linked to the computer so we could see the values it was outputting. Before the sensors were even tested in water, the values were jumping everywhere, and that behavior continued. We tried different ways to get them to work, but we were unsuccessful.

After collecting the samples of water and swabbing the plates, we labeled the plates and placed them in the incubator. The samples that would be grown under UV light were put on the top shelf. We put foil around the bottom shelf because we didn't want the UV light to leak in. This was where the control and other samples would grow. Once 24 hours had passed, we took out the samples that were designated to be grown first and then under UV and put them under a container with the UV lights. For the second test, we had 2 containers: one with UV light and one with no light.

The electrical connections were essential to the project working. We did have the bottom part functioning before the Arduino stopped working, but we weren't able to collect any testing data. However, We were able to test the connections for the UV lights. They were placed in the cap of the bottle and strips of metal ran along the side of the bottle, connecting them to the Arduino below. The wiring that we were supposed to test in the bottom component, had to do with the capacitors. Luckily we already knew that they worked, but we just weren't able to test everything together.

Had the LED lights worked, this is the section in the app that we would have used to control them. The water values from the bottle were also communicated to the app. These show that the Bluetooth capabilities of the Arduino work.

We went through 3 different models of the bottle body and unfortunately, they all leaked. Due to the time constraint of the project as well as not wanting to waste any more 3D filament, we retrofitted an existing bottle to fulfill our purposes.