Currently, The telescope's secondary mirror (used for focusing) is driven by a stepper motor. This motor is connected to a PK2 Stepper Motor Drive, which itself is controlled from the Heimdall I/O board, which processes user focus requests from the Evora client. Limit switches stop the mirror from moving too far in either direction, and are directly wired back to the I/O board.

The purpose of this project is to swap the Heimdall board with an Arduino UNO. The Arduino will receive focusing-related commands from the client via HTTP commands via an ethernet cable and the Arduino will send telescope focus signals to the PK2 stepper motor drive.

Link to the Engineering Notebook for the project: https://docs.google.com/document/d/16X8c-PVCSMUchpS4MnRiA4OjP7H_lG1Q/edit?usp=sharing&ouid=109139938162474682100&rtpof=true&sd=true