The author built a DIY VR headset using the Relativty VR project, which provides open-source code, configurations, and assembly instructions. The project relies on an Arduino Pro Micro controller, a GY-91 IMU module for motion tracking, and a pair of 2.9-inch LCD displays with 1440x1440 resolution.
Total hardware costs amounted to approximately $180, excluding a replacement set of displays. The assembly process involved 3D printing the headset housing, soldering components, and integrating a face pad from an HTC Vive for comfort. The author utilized files from the CNCDan build for the mechanical design.
Technical challenges included firmware errors caused by a counterfeit IMU chip and the fragility of the LCD panels during installation. The final device suffered from sensor drift and ergonomic issues, making it less practical for long-term use compared to commercial alternatives like the Meta Quest 3S.
While the project offers significant learning opportunities regarding hardware design and integration, the author concludes that the performance and comfort levels do not currently match off-the-shelf consumer headsets. Further upgrades, such as using a more precise MinIMU-9 sensor, would increase the total cost, narrowing the price gap with mass-market devices.
