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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 121,000+ 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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