As of now our team sees no greatly significant risks to achieving our MVP. However we have compiled a few potential blockers or issues to tackle in the next couple weeks. Firstly is ensuring that our bluetooth transmission works effectively. We hit a blocker this week with getting bluetooth transmission to work when using SPI and interrupts. This shouldn’t be a long term issue. Secondly is the design of the case for our embedded system. We are currently iterating on different approaches for attaching our system to the handle of the racket without impeding on the user’s experience. This may or may not take longer than 3 weeks to get in an acceptable range. 3rd is designing the ML pipeline for this system. We have done substantial outside research to give us confidence that our design can succeed. However, we will undoubtedly need to make changes to some parameters as is reasonable with our own hardware and data flow.
In order to mitigate risk 1: we will be building slowly up from sending simple messages via bluetooth to reaching the high performance transmission throughput we need. At some point in trying to integrate bluetooth with our overall system it stopped working completely. We will need to build, test, and validate incrementally this time around to be able to debug more effectively.
In order to mitigate risk 2: we will be constantly iterating our design to minimize user impact. We will be reaching out to collegiate tennis players that we know in order to get feedback on our ideas and implementation as we go.
In order to mitigate risk 3: we will be working on creating a baseline pipeline that works structurally the same but with less expected accuracy. We want to uncover unexpected issues as quickly as possible to make needed changes. We will additionally be doing testing and verification of our data flow to ensure data integrity as it goes through our ML pipeline. This will be pivotal in ensuring accurate results when testing the ML.
We made successful improvements to the application to make the user experience better. We also successfully recorded our first swing. We created a new attachment for the prototyping boards that fits the handle better and moves doesn’t move around at all and then hot glued the boards on for prototyping. We also wrote some code to visualize the swing path.
