Iteration 2: Speculate Phase

  • Define the MVP (minimum viable product)
    • My MVP will consist of a housing unit with three load cells providing weight readings to the Arduino. The Arduino will also be connected to an LCD screen that will be able to display the plate is on, zeroed, and ready for food to be place on it. An LED strip will also be connected to the Arduino in the interior of the housing unit that will light up based on the weight readings from the Arduino. All of this will be placed in a housing unit that is aesthetically pleasing.
  • Re-prioritize feature/work item list if needed (ALL features) and updated estimated workload for each feature/work item if needed (ALL features)
    • High Priority Items
      • 3 Load Cells connected to HX711 Load Cell Amplifier, connected to Arduino, providing 3 weight readings (6 hours to wire circuit and write code) – 5
      • LEDs wired to Arduino that light up and react to Load Cell Readings for plate interactions (6 hours to wire and write code) – 5
      • LCD Screen connected to Arduino that shows plate is on and zeroed before food placement (6 hours to code and wire) – 4
      • 10-LED long strip wired to Arduino, for every 10% of weight off plate 1 LED lights up (8 hours to code and wire) – 5
      • Design and 3D print the pieces that will connect to Load Cells to increase surface area to hold items allowing for a weight reading (12 hours to design and 3D print time) – 5
      • Design of Load Cell Housing in Rhino and prototyping (3D prints/cardboard prototype) (12 hours) – 5
      • Plate prototyping (silicone model, 3D prints, casting?, portion demonstration in design) (6 hours) – 5
    • Medium Level Priority – Not MVP but would be nice
      • Speaker embedded in plate or starboard, allows for sound to play when a star lights up on tracker (3 hours to code and wire) – 3.5
      • Embed LEDs in housing unit and code different color interactions based on the appeal of color in relation to food (6 hours) – 4
      • Meal Progress Bar on LCD screen that lives on front of housing unit (modeling to fit in housing and programming the screen to get weight readings and reflect it in progress bar) (6 hours) – 3
    • Absolute Lowest Priority Items
      • Features that are ranked 1 and outside the scope of this project but could be part on an integrated system with the Interactive Eating Plate
        • Haptic Feedback Utensils
          • Materials suited to users preferences (sensitivity to metallic utensils, use of matte ones)
          • Haptic feedback to set an eating pace based on total desired eating time and food left on plate
      • App
        • Nutritional Information to be stored and kept based on what is on plate (photo recognition or manual input in app)
        • Saves profiles for nutritional goals
        • Save profiles that allow device, app, or internet access based on positive eating habits
        • Recommended grocery lists based on what foods were ate the most or fastest
        • Wifi Connectivity of Plate Meal completion can unlock wifi on certain devices, or apps, or provide overall screen time on a certain device
        • Devices connect with wifi to allow for nutritional tracking and possible parental controls for kids as motivational factor 
        • Aroma/Chemical release to combat unpleasant smells that make food unappealing or cause nausea (6 hours) – 1
        • Use of audio speaker to play encouraging messages from family or general prerecording ( 8 hours) – 1
  • Work planned for iteration 2 including:
    • Feature list for iteration 2 (totaling 24 hours)
      • 3 Load Cells connected to HX711 Load Cell Amplifier, connected to Arduino, providing 3 weight readings (6 hours to wire circuit and write code) – 5
        • Utilizing Sparkfun HX711 boards to connect load cells to arduino
        • Includes getting accurate weight readings from the load cells by calibrating them correctly with code and testing
      • LEDs wired to Arduino that light up and react to Load Cell Readings for plate interactions (9 hours to wire and write code) – 5
        • Have one circuit with all elements, LEDs are functional and dependent on weight readings
        • Writing code to create one variable for all three weight readings from load cells and reacting LEDs to this variable
      • LCD Screen connected to Arduino that shows plate is on and zeroed before food placement (6 hours to code and wire) – 4
        • Most research has been done here, I have the correct hardware ordered, and I will have to wire my lcd screen without a QWICC cable. .
      • Plate prototyping (silicone model, 3D prints, casting?, portion demonstration in design, research into portions) (6 hours) – 5
        • I will again create a rapid prototype (most likely out of cardboard), where I am conceptually with my plate design. I will then also conduct a little more research into portion sizes for young children and how I might display this information for parents when serving a meal.

Update After Meeting with Sponsor 2/17:

After meeting with the FlaVR team on 2/17, they have asked me to do two things. 1 is to create a comprehensive document of all the work I have done this semester and last related to this project and share it with them. As of 2/18 this document is created and shared with the team. Item 2 is to incorporate aroma release into my plate. Since this is very new and I don’t have the hardware for this yet, I am making this a low priority item for exploration phase iteration 2. I am in talks with the mentor Nimesha on ordering the proper hardware and will make ordering it a high priority item for iteration 2. Executing the aroma release (ordering parts, building the circuit, writing the code), will all be low priority and I will focus on the work I have planned with extra time going to the aroma release objective.

Time estimate for Aroma Release:

  • Ordering parts and sending invoices: 1 hour – 5 priority
  • Building Circuit: 4 hours – 2 priority
  • Writing Code to execute aroma release: 6 hours – 2 priority

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