Posts

Showing posts from October, 2025

Building OnstepX Computerized GOTO system for Telescope

Image
Build Your Own 'Go-To' Telescope: The Simple OnStepX System with FYSTEC E4 This guide is intended for astronomy enthusiasts who want to build a simple and affordable GOTO system for their telescope using the  OnStepX firmware . There are several ways to build an OnStepX controller, and many great resources already exist at  the  OnStepX Wiki . ⚠️ Note:  I strongly recommend all users to read the official documentation before starting this build. This specific build will provide you with a full-featured controller featuring: RA (Right Ascension) and DEC (Declination) Motor Connectors FOCUSER Connector DEW HEATER port USB Port for flashing and power ON/OFF Switch with LED indicator What is OnstepX? OnStepX  is an open-source, computerized telescope control system that adds  GOTO  and  tracking  capabilities to manual mounts using affordable microcontrollers. It’s a DIY solution that allows you to control telescope mounts, focusers, and accessor...