Outline your approach to the project? What ideas did you generate and how did you refine or reject them? What did you research and explore?
My starting point is to choose what approach to measuring the condition of the drinks.
1. My first trial is the using the
2. Since my goal is merely detecting one kind of food and requiring more precise metric, I came up with using the weight of drinks to measure the condition. After a while, I found the FSR (force sensitive sensor) is the right one.
This variable resistor is just like a photocell or a flex sensor. The resistance changes by applying force on it.
For this project, we will need:
The LED is used to ensure the FSR is working without reading the output of
3. The circuit