We have set up our project so that when an event occurs, it can notify the appropriate audiences by text and.or email. Furthermore, we have included a geographic database of all the toilets we will be using. Lastly, we switched from the I2C to SPI interface, allowing us to receive several minutes of continuous data from the accelerometer. We duplicated our successful prototype, only to again struggle to maintain continuous communication.
We have maintained continuous detections with two devices. Our waterproof design with longer wires fails to send acceleration events, however. We continue to check the accuracy and tightness of our wiring.
Two flush detectors have been mounted to the toilets of WEH Men's 5, complete with a water resistant design. Data from the toilets is sent to a website POSTing JSON information about the event and battery.
1/16 - Rather than struggling with soldering irons to melt plastic bags or carefully laying double sided tape down, we created our more elegant and resilient waterproof seal using cute little resealable bags from a mini kit and some hand-chewed Trident. We hesitate to submerge or jetstream our accelerometer, but we believe our device can handle the exhaust of almost any toilet flush.
1/15 - Rather than soldering 7 wires to each accelerometer, we decided to solder parts of a Nx1 female header strip. These were much easier to solder, though we had troubled when a wire broke off inside the header and we were forced to replace the entire thing.
1/13 - Struggling to receive a vibration, we created a secure mock toilet using Amazon package to model intense vibrational events sure to exceed 2, 4, and even 16gs of force. Although we eventually decided to cut sensitivity in half, our primary issue was faulty connections.
1/16 - We connected Sara Z, the third and final sensor, to a urinal. Although the urinals only use 3.8 liters per flush compared to 6 liters per flush for the full toilets, the pipe still vibrates enough to activate the unit. Sara T has been performing questionably, but we gathered good data for Sara U over the course of Friday.