Jason’s Status Report for 4/19/25

After specifying and discussing the communication protocol with Jamshed last week, this week I spent the first part of my time implementing said protocol. This was done entirely in the Arduino code for the ESP32 so that it communicates directly with Jamshed’s iOS platform without a Python script acting as a middleman. This protocol specified how the data would be sent and in what time interval it would be sent.  We also decided on an external start command for the ESP32 to wait for in order to begin transmitting data from the BNO IMU sensor it is connected to. This is separate from the internal start logic that I implemented, which solely depended on a threshold of velocity to be exceeded. We tested this communication protocol out during class time on Wednesday, after I had finished implementing it and we were able to successfully integrate the two parts together, with communication working on Jamshed’s phone while testing. The only setback we had was the data accuracy, particularly of the velocity metric. I then spent the rest of the week trying to fix this data discrepancy, which required some further research into sensor fusion and Kalman filters. I also am rewriting my python script which has to be updated based on the new communication protocol, but will use this as a method of less-complex testing in order to simulate communication with the phone with a focus on checking velocity data accuracy since we know that the devices’ communication integration should already be good to go for demo day. I believe we are on track once I finish up fine-tuning the velocity data accuracy, and should be good to begin filming our demo video within the week.