This week we continued to work on the project attempting to determine what the issue with the accelerometer was. We also started to write our Verification and Validation report by outlining points for discussion. Galen helped to create a figure illustrating the specification regarding the feedback based on the angular displacement using Matlab and Adobe Illustrator. Olivia helped to work on the timeline and listing the design specifications. Chris worked to get the prototype started by debugging the accelerometer and potentially use Professor Widder’s accelerometers for our initial design. We discovered that the accelerometers we purchased use the SDA and SCL pins on the Arduino, meaning each Arduino can only support one accelerometer since each only has one of each of those types of pins. Chris then attempted to use two of Professor Widder’s accelerometers that use typical analog pins and was able to measure the angle between the two accelerometers with fair accuracy using only the z acceleration for both, but they must both be in the x-y plane for this approach to work. Next, Olivia will try finding the angle between the two accelerometers using all three axis and eliminating the same-plane limitation of a one axis approach. To read all three axis, however, three pins must be used for each Arduino with there only being six analog pins total. We may have to look into interfacing several Arduinos at once in order to use the appropriate number of accelerometers at once. We haven’t scheduled it yet, but we will reach out to Professor Klaesner for feedback on our progress and concerns about the accelerometer accuracy.
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AuthorJust your average engineering students -- solving problems yet to be solved Archives
April 2018
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