Explanation of developments in wand design and setup of IMU

I am first trying out the BNO055 IMU. I have managed to get some sensor readings( one of my arduinos broke). I was hoping to have good orientaton readings even if the position is going to drift. I note that the damping is not amazing, so if I disturb my IMU and then leave it alone, it takes a while for the orientation to settle down.

Nonetheless I am pleased with the data so far because I believe that the VR application can handle all of these issues. Example- in a shooting game you will you some kind of autoaim and therefore even if the reading is not perfect we are just trying to make sure we can get reasonable data to understand user intent.

Also, just a note to dummies like me who are following the guide online- use the PDF for the IMU instructions, the wiring is somewhat different if you dont use the same arduino as the one on the webpage(uno).

On the wand design front, I am posting some pictures which will explain the design. I can already see that the breadboard holder and battery holder can all be integrated into the frame. This will allow me to shave some mm to get more space/smaller device. (Do note that I am designing the CAD files so that you get pretty stiff parts which will not warp and will still fit after cooling shrinkage and therefore many of the thicknesses may seem too large. We can certainly use different materials and manufacturing processes for a more compact build but hopefully this is something which people can make with the tools they have at home)

Update: I am still working on that IMU setup, everything does not seem to be calibrated perfectly.