Final Project #2

Physical & Coding Modifications

This week, Julia and I made some more modifications to our project. To start with, we changed the structural design of our project to have an arrow on the inside of the circle instead of the circle rotating behind the clock face because the issues of wiring in the back could prove to be very troublesome.

We also decided to change part of the coding to have a warning signal before going into the transition period. The teacher can set a time by using a dial (potentiometer) for how long the LEDs around the pictures blink, as to warn the kids that the transitioning is about to happen. This would allow the teacher to judge how long the children need on a day to day basis.

Similarly, the amount of time taken to transition between activity to activity would be controlled by the teacher. They would do so by turning a dial (potentiometer) to the desired amount of time to transition, depending on how much there is to clean up or get ready.

Prototyping

We created a rough prototype out of foam core, then used solid works to create a more symmetrical and accurate prototype, including the squares where the pictures would be, the lights, the clock hand, and the hole for the servo (all to scale).

Our first prototype

Our second prototype

SolidWorks part drawing for prototype

We ordered figured out the materials we needed to find online on adafruit, such as LED light strips to go around the activities and create the arrows, buttons to start the transition time, and potentiometers and dials for the teacher to set the warning and transition times.

We also started saying how we hoped our code to play out in english before converting it over to Arduino.