This week I focused on a couple of things. First of all I worked on modifying the CAD to place the biconvex lens closer to the beamsplitter. The other change we made to the CAD was splitting the front side of the goggles at a 45 degree angle to remove the tunnel effect and give the user a more open view of the environment. We are still waiting on this print to verify the effects of these changes.
Along with this, I also worked a lot on the RPi software. I wired up our two GPIO buttons and I was able to test both of their functionalities. the first button is just a basic app cycle button. In testing this button I was able to verify seamless switching between translation and gps apps with indications on the display. Also, switching apps maintains app data from the last JSON text, which is a nice additional feature. The next button is the app-specific button which is really only used for taking pictures in the translation app–this also works as expected.
Finally, I worked on modifying the display rendering for both apps. I was able to send test JSON text to the RPi from my Mac and verify the display locations and figures. Also, sending data with a different app name automatically switches the app so that in future tests the user will be able to also switch apps from their phone.
Overall, I think we’re doing really well. We still have more iterations of CAD to go through and more work for the iOS, but we are definitely ahead on Pi software verification.