I developed this project to introduce Arduino and a few types of sensors (button, toggle, knob, light sensor) and an actuator (an led). The MIDI tricorder is a one day workshop that covers many aspects of digital instrument building in a simple way while pointing to various avenues for expansion. The enclosure is created using 3D printing and laser cutting and the Arduino is a Pro Micro, It connects to a computer as a plug-and-play MIDI or HID controller that you can use with lots of software programs. I developed a detailed tutorial, with code examples, design files, and critical resources about human-computer interfacing.