This was a crazy week. We finished the presentation and the poster at the beginning of the week, all the while running more tests so we could have good information to include on both. Individually, I spent a lot of time polishing up the app. The app sends audio notifications now!! I just used text-to-speech online to generate the mp3 files that I used (saying “pedestrian approaching”, “biker approaching”, or “car approaching”). I made it so that when an audio…
The app is officially in working order! Definitely tons of room to improve, but our end to end system is now functional. It does not yet make a noise for notification, but I know how to do that so that shouldn’t be too difficult to implement. Spent a lot of time on Saturday walking around campus with Evan testing the whole system. Also spent a good amount of time working on the presentation. Next week will likely include finishing the…
This week has shown solid progress in the area of bluetooth communication. There is now a node js program that runs on the raspberry pi that creates a bluetooth service that is accessible on an iphone using a bluetooth scanner app that can run a script to start a python program and collect the results from that and transmit that to the iphone. Unfortunately, the javascript method only seems to get output from the python file upon completion, which obviously…
After doing the reading assignment, I was able to focus on my work a lot this week. I completely implemented a nodejs program using bleno to create the bluetooth services that I need, since the ones that are available on the raspberry pi built in will not work for our purposes. Initial testing with a BLE scanner app allows me to connect to the pi and use these services, so I have successfully transmitted data to and from the raspberry…
Spent the beginning of the week trying to get bluetooth communication ready to demo, only to realize the framework that I have been using will not be able to work for what we need. I finally figured out the details of the bluetooth peripherals built in to the raspberry pi (its documentation is sketchy at best), and I do not believe there is any way to send a script from the iOS application to start our program on the raspberry…
This week, we heavily focused on our separate parts, as we try to get something cool together to demo. We did get more parts delivered, including the additional LIDAR sensors, so there was a lot of excitement in testing out more of our system and seeing how it measures up to our goals! Here’s a picture of Evan and Will testing out a LIDAR sensor outside on Wednesday.
Spent way too much time working on setting up the app to bluetooth communicate with the raspberry pi, because it turns out (after much digging) that the sample github repo I found will not work for what I need. So I started from scratch, using the CoreBluetooth framework, working heavily with the CBCentralManager class and the CBPeripheral class. Really hoping this will work this time, but not at the point of testing yet. Plan to do more work on Sunday…
This week I have really gotten to dive into working on the iOS application, which was nice. Had some bugs to deal with, which took longer than they should have to navigate because this is my first time working with xcode / swift. I’ve also started to look at more demo apps to hopefully speed up this process, rather than trying to learn everything myself from scratch. Also spent a good chunk of time investigating how the bluetooth communication will…
After spending several hours working on the report and completing the ethics assignment (before the deadline got pushed back), I spent some more time working on the Theia iOS app. I am slowly learning how to navigate xcode, but managed to create and connect several scenes and I think I am close to having the basic flow of the app put together. The biggest hurdle I see coming up is figuring out how to receive information from the Raspberry Pi…
The start of this week was spent preparing the design review report, which was due on Monday. Since the design review presentation we have redesigned the sensor orientation on our wearable. To avoid complications regarding interference with multiple ultrasonic sensors, we decided to instead spend our budget on additional LIDAR sensors. We had been using the ultrasonic sensors because of their wider field of view, but if we get three LIDAR sensors and orient them all at slightly different angles…