Thom continues to work on the IMU. His current thought is that the offsets don’t need to be too specific because they change with initial head position every time our Arduino program is run. It will be more important to account for the initial head position. He also investigated which dimension (pitch, yaw, or roll) to use for each direction the head might move in (forward, right, left, back). In order to investigate this, he is taking the data (pitch, yaw, and roll measured over time) outputted by the IMU from the Arduino serial output and plotting it in MATLAB. In order to plot this accurately, he also investigated how often the IMU readings are reported.
In order to facilitate the testing of the IMU, Thom is investigating ways to interact with Arduino from MATLAB. Ideally, we could get MATLAB to automatically plot the data from the Arduino serial output without manual input. We also met with Dr. Klaesner in order to ask some questions. We spoke about the calibration of the IMU, which Dr. Klaesner suggested we may have to do for each individual user by taking several points of reference before beginning the feedback cycle. We also asked about pulling Arduino data into MATLAB, and Dr. Klaesner suggested investigating exactly what data is being provided by the IMU and how the Arduino program we have been using processes this data to produce values for pitch, yaw, and roll. Thom is looking into what data is going into each pin of the Arduino, and we will meet with Dr. Klaesner in the lab next Monday to examine this subject with him. Katelyn is researching the best way to interface the Arduino and the Raspberry Pi. In particular, it seems like most programming on the Raspberry Pi is done in Python, so she is going to be looking at how the Arduino IDE and a Python program could potentially be used in conjunction in order to activate feedback based off the results provided by the Arduino/IMU. She is also planning to order haptic motors this week, so that we can test them with the Pi and/or the Arduino next week or the week after. Emma is working on writing our V+V report. We had some questions about how the testing can be performed for certain areas for Dr. Klaesner this week, since it will be impossible to perform some forms of testing with our prototype device, the only one of its kind. We hope to finish this report quickly to be able to proofread it well and have time to continue working on our prototype next week. Comments are closed.
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Thom Ellison, Emma Huff, Katelyn Miyasaki Archives
April 2019
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