myFocuserPro is an ASCOM and Moonlite compatible stepper motor telescope focus controller (DIY) based on Arduino Nano/Uno. A popular DIY ASCOM focuser with more than 117,000+ downloads.

(c) Copyright Robert Brown 2014-2024. All Rights reserved.
Permission is granted for personal and Academic use only.

Spreadsheet to calculate what stepper motor to use.
https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/Documentation/Nema-Stepper-Motors.xlsx/download

Features

  • ASCOM driver tested with FocusMax, Nebulosity 4.1.1, APT v3.13 and ScopeFocus
  • Supported Driver Boards - A4998, ULN2003, L293D, L298N, DRV8825, EasyDriver, ST6128, RAPS128, TMC2225/2209
  • Software - Windows Application, ASCOM driver, INDI moonlite driver
  • Create using stripboard layout or using PCB design
  • Tested with INDI moonlite driver under Ubuntu and Ekos
  • Tested on MacBook with TheSky and Moonlite driver
  • Manual or full automated remote control (eg focusmax)
  • Manual control by Push Buttons, Infra-red controller, rotary encoder
  • Manual zero position (hold down both push buttons for 2 seconds) or via application/ASCOM driver
  • Arduino code, ASCOM driver and Windows Application support for all build options
  • Multiple Language support
  • LED indications for IN, OUT (optional) and external PWR
  • LCD1602/I2C display (optional) for positional information (Current and Target positions)
  • Temperature probe support (optional - DS18B20 accurate to 0.5 degree)
  • Reverse voltage protection on 12VDC input
  • Option1: 28BYJ-48 Stepper Motor and ULN2003 driver board using Arduino Nano
  • Option2: NEMA17HS15-0404S-PG5 Stepper Motor and L293D Motor Shield using Arduino Uno
  • Option3: NEMA17 and DRV8825 driver board - up to 6400 steps per revolution!
  • Option4: NEMA17 and EASYDRIVER board - up to 1600 steps per revolution
  • Specify Reverse Direction, Coil Power, Stepping mode in either ASCOM or Windows application
  • Important focuser parameters stored in controller EEPROM and retrieved when driver/application connects
  • Full build instructions, diagrams, test scripts, comprehensive manual, bracket design and more
  • Detailed instructions on initial setup, operation and selection of stepper motors
  • Full parts list with suppliers, costs and build options
  • Bluetooth Wireless adapter HC05 option

Project Samples

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Categories

Hardware, Astronomy

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Additional Project Details

Operating Systems

Linux, BSD, Windows

Intended Audience

Education

User Interface

Win32 (MS Windows)

Programming Language

C#, Assembly

Related Categories

C# Hardware Platform, C# Astronomy Software, Assembly Hardware Platform, Assembly Astronomy Software

Registered

2014-10-09