Google's Cardboard Magnetic Switch

thingiverse

Currently developing a cutting-edge project that integrates 3D printing and mobile phone technology. The concept revolves around using cardboard's built-in magnet switch as a trigger to perform an action, allowing users to unlock the device with a simple swipe or gesture. I recently discovered a versatile case on Thingiverse designed to house the magnets and create a sleek demo device. This design is a masterpiece of engineering, requiring no adhesive to assemble, as the pieces fit together perfectly due to their precise low-tolerance specifications. Once constructed, it's easy to push apart but incredibly difficult to disassemble, demonstrating the impeccable craftsmanship of this 3D printing marvel. I took advantage of some existing code from Cardboard in my Android app and repurposed it to display a message whenever the magnet switch is triggered. The phrase "Magnets... How do they work?" now appears on the screen every time the sensor detects movement, offering users a chance to learn more about this intriguing technology. Initially, I encountered issues with the sensitivity of the magnet switch, resulting in an infinite loop of notifications when it got too close to the phone. To rectify this problem, I tweaked some parameters to optimize performance, achieving remarkable results despite ongoing refinements. One of my future goals is to implement user-adjustable settings for the magnetic change tolerance, allowing users to customize the device according to their preferences. This addition will further solidify its appeal as a functional gadget that caters to various tastes and needs. In terms of hardware, I managed to source all necessary components from Home Depot for an incredibly low cost of six dollars. With the Neodymium magnet available in packs of three and ceramic magnets sold in eight-pack sets, you can build up to four distinct switches using these resources alone. So, for those who wish to experiment with this innovative technology, have fun pushing your limits and learning from my discoveries! Can't wait until I reach a critical point in my project and showcase the amazing possibilities we'll be working with. http://www.homedepot.com/p/Super-Magnets-3-4-in-Neodymium-Rare-Earth-Magnet-Discs-3-per-Pack-07091HD/202526387 http://www.homedepot.com/p/The-Magnet-Source-3-4-in-x-3-16-in-Ceramic-Disc-Magnets-8-Pack-07003/202535612 https://github.com/raasun/cardboard/blob/master/src/com/google/vrtoolkit/cardboard/sensors/MagnetSensor.java