This disclosure describes a mechanically operated controller for a mobile device. The controller includes a grid of black and white squares whose pattern can be mechanically changed. Particular patterns are read by a mobile device, e.g., via its camera, and interpreted as different commands. The mechanical controller can be used as an interface between a mechanical device, e.g., a musical instrument, and the mobile device.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.