This week our group finished making a box that contains our device. It fit perfectly and has a hole for the speaker, sensor, and mini-usb to give our device power. It has an open top so that we can easily take the device in and out and also so that people can look at the device more easily. We also got our entire device to work every time when it tries to sense a hand, but when we put it up to water it didn’t always work. When the water was coming out too fast and it turned foamy and white, the sensor couldn’t detect the water, but when we only let out a little bit of water the sensor could sense it and would start beeping. We also presented our device to many people in the gym. Everyone seemed to like our idea and were giving us suggestions and asking us questions about our future steps. We are thinking about making a smaller version that can attach to the actually faucet. Today (Friday) we started brainstorming ideas for our group video.
Posted by Will
This week our group 3D printed a box that will hold our device. The box was too small so then we decided to print out another one that is slightly bigger, but then, something wonky happened and the box we printed out the second time was the same one we printed the first time. We are going to fix this problem and then print out a better box. Our little bits device also stopped making sound when the motion sensor was triggered. We also started making our poster.
-Posted by WIll
This past week our group has primarily focused on creating our solution. We started by using a coding program called hummingbird but had some difficulties with a sensor that we were using (that would be used to sense the running water). The circuit board was also a little bulky and not realistically a device that can easily be put on a faucet. So then we decided to use little bits, a much smaller/convenient way to create our device. The little bits has a motion trigger, and a buzzer that is attached to a battery (See image below). When the motion trigger senses motion around it the buzzer goes off. One problem with this is that when we were testing out the device the buzzer was constantly because there was so much motion around it. We are going to design and 3D print a box around it to cancel out any excess motion but still leave holes for the motion trigger so it can sense motion and the buzzer so you can hear the noise.
Our group also wants to start taking data on how much water we are going to save and how many people would actually want to use our solution. Since we won’t be able to make many prototypes we will test them out at our houses or a friend’s. To figure out how much water we use on average before and after using the device will require having to look at a water bill. We want to make form for students in our grade to fill out to see whether they would use use our device or not.
Posted By Samantha