Design and development of a compact keyboard with 8 keys and a rotary encoder

This paper contains the design and construction of a customized mechanical keyboard. The housing and keys were made according to a custom 3D model. A printed circuit board was designed with mechanical switches, a rotary encoder, hotswap sockets and diodes. Control was achieved with an Arduino microcontroller, and the functionality of the keyboard was achieved by implementing an open source software solution that allows dynamic adaptation of functions. The creation of a fully functional, compact keyboard intended for macro commands, multimedia control and specialized applications was achieved.