There are many health apps these days to help people track how much water they are drinking, but there's one problem with them, we're pretty forgetful. Karthik tried to use one of these apps once, but could not keep up with the commitment of accessing the app every time he drinks his water. So we thought of a solution. A water bottle that does it for you.
What it does
The SmartBottle tracks how much water you are drinking from the bottle by sensing how much you tilt the bottle. The amount of water recorded is based on your own drinking speed. When you first get the bottle, you can train a machine learning model simply by drinking water while pressing down the recording button and inputting how much you drank in each swig into an app. This way, the model is completely personalized and can accurately estimate how much you are drinking. The app also lets you input your weight and tells you how much water you should drink a day based on that. There is a progress bar on the home screen to visualize just how far you are getting each day with your water intake. There is also a feature in the app that allows you to input the foods you eat and adds the water from those foods into your daily hydration, since much of the water we get each day is from foods.
How we built it
Challenges we ran into
Accomplishments that we're proud of
We are all pretty new at using hardware, so we are proud of learning how to use so many different systems. We are also proud of our machine learning model, since it is a fairly complex part of our project, and our app UI since it looks very clean.
What we learned
We learned a lot about using hardware, such as using sensors on an Arduino, a button on the Pi, and connecting the Arduino to the Pi. We also learned a lot about machine learning while making our model.
What's next for SmartBottle
We want to make the bottle less clunky by finding a gyro that can work directly with the Pi so we can remove the Arduino. We also want to be able to connect a fitbit to an app and use the new information from the fitbit to provide more accurate water intake goals.