Author: xuanyel

This week, we spent time refining our design. One thing that came up was the actual gestures that we were going to use. We translated our three general gestures, zoom with a pinching gesture, pan with a swiping gesture, and rotate with a rotating gesture, into specific gestures described in three aspects: flex sensor output resistance, accelerometer measurement, and gyroscope measurement. For example, this is our more detailed description of a zoom-in gesture:

Pan

• Grab: partially closed hand as if you’re grabbing an object (half curl)
• Pan: Move your hand while keeping the same finger positions

Flex: all constant mid

Acc: changing x

Gyro: Constant

 

We also realized that our zoom-in gestures and zoom-out gestures have to be different because we don’t want the gesture to be reversible. We wouldn’t want the user to zoom in, then when they let go of the gesture, the detection might trigger a reverse if we’re using the same gesture. Along with a more detailed design, we also worked on our design presentation.

I think our progress is still on schedule because we have already received our Pi, and the original deadline this week was to put in the bill of materials. Next week, we hope to receive our other materials and start building the glove, along with initially writing up the gesture detection mechanism.

Relevant ECE Courses: 18-290, 18-220, 18-349

Gestures

I spent the beginning of the week finishing the proposal slides, and practicing and delivering the presentation. We first revised our initial proposal submission based on the comments provided by the Professor and proceeded to draft the slides. To be honest, I was a little nervous about finding out that I had to go first on the same day the order was revealed, but I think I  was able to present just fine.

In our original timeline, we were supposed to discuss and order the materials by next week. However, we decided that we had a lot of time left, so we were able to finalize our Bill of Materials this week. In particular, we swapped out our proposed solution for a Jetson in favor of a Raspberry Pi 4 because of the Jetson’s incompatibilities with HID and the need for an extra Wi-Fi module. Gram was able to send in the order, so hopefully, we would able to start working on the actual project next week.