Final Project Week 3

Day 21 (4/12/16)

During the third week of our final project, Sara and I made some major adjustments to our design. We decided to go a different way from our original idea of the temperature scale. Instead we decided to make a warning system for Jim. We planned to have 2 elements that would serve as a warning device for Jim. The first layer of warnings are LED lights. We planned to have a blue LED for when Jim starts to get cold and a red LED for when Jim gets too hot. For the second layer of warning systems we planned to have bell. Our idea was to use a servo to either ring the bell on a stick that is attached to it or to attach a stick to the servo to hit a bell.

Once we refined our idea for the device, we started putting our prototype together. While Sara worked on the code, I put together the circuit. Our first prototype ended up looking like this:

Day 22 (4/15/16)

We had a little bit of trouble with the code and the circuit doing what we wanted it to do but by playing around with the code and trying to simplify the circuit we were able to figure out our problems and fix it. By the end of the week we had all of the pieces (the LEDs and the servo) working properly. All were missing were the correct temperature ranges for Jim.

Here is the code we used for the circuit:

Here is a video of our working prototype:

The next steps for us is to attach the bell to the servo and then present our prototype to Jim to get feedback. Our meeting with Jim will be next week.