User Guide

This driver provides control over Celestron telescope mounts using the AUX protocol. It is compatible with INDI clients like KStars, Ekos, and Stellarium.

Connection

  • Port: Serial port path (e.g., /dev/ttyUSB0) or network address (e.g., socket://192.168.1.100:2000).

  • Baud Rate: Usually 19200 (9600 via Hand Controller).

Operation

Motion Control

  • Slew Rate: Select speeds 1-9.

  • Directional Buttons: Move the mount manually in N/S/E/W directions.

GoTo and Tracking

  • Sidereal Tracking: Used for stars and deep-sky objects.

  • Moving Objects: Support for Sun, Moon, Planets, and Satellites (via TLE).

  • Anti-Backlash: Approach logic to reduce mechanical slack.

Safety Features

  • Slew Limits: Configurable altitude limits via TELESCOPE_LIMITS.

  • Cord Wrap: Prevents rotation beyond 360 degrees to protect cables.

  • Abort Motion: TELESCOPE_ABORT_MOTION stops both axes.

Features

Predictive Tracking

The driver uses a predictive algorithm to calculate the velocity of objects. This is used to maintain tracking for moving targets or during atmospheric refraction changes.

Accessory Support

  • Focuser: Support for Celestron AUX focusers.

  • GPS: Location and time sync from GPS modules.

  • RTC: Reading and writing Real-Time Clock data.

  • Power: Voltage and current telemetry for battery-equipped mounts.