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An ESP32-S3 WiFi focuser.
(c) Robert Brown 2014-2026, Holger M, 2019-2021. All rights reserved.
Code or portions of code may not be copied or used without appropriate credit given to authors.
Only download the specific Board that you will build. If you try to download all of them, this is not helpful and can impact negatively on the Project build, because the wide range of options can easily cause confusion and hinder project progress.
Spreadsheet to calculate what stepper motor to use.
https://sourceforge.net/projects/myfp2esp32-s3-focus-controller/files/documents/Nema-Stepper-Motors.xlsx/download
Spreadsheets to calculate CFZ
https://sourceforge.net/projects/myfp2esp32-s3-focus-controller/files/documents/CFZ%20Spreadsheets.zip/download
Focuser Basics Guide (PDF) - shows how to derive the correct motor requirements for your system (mandatory reading)
https://sourceforge.net/projects/myfp2esp32-s3-focus-controller/files/documents/Focuser%20Basics.pdf/download
Features
- ESP32S3-N16R8 based WiFi Focus Controller
- Comprehensive user guide (pdf)
- Easy to assemble DIY or use PCB design (Download Gerber files)
- Wide range of applications for Android, ASCOM, INDI, Linux
- Remote Observatory support using DUCKDNS (using the new S3 applications and ALPACA/ASCOM drivers
- Support for Zero Lost Steps Controller with CL42T NEMA solution
- Temperature Probe, supports temperature compensation
- Interfaces: ALPACA, ASCOM, curl, INDI, TCP/IP, JSON, Web browser, XHTML
- Options: Home Position Switch, Display, IN-OUT LED's, Push Buttons, Joystick, Infra-red remote control
- Driver Boards CL42T, DRV8825, L298N, ST6128, TMC2225/2209, ULN2003
- Motors - 12V NEMA and 12V 28BYJ-48 stepper motors (built-in backlash support)
- Servers ALPACA, Debug, Management, OTA (Over the Air updates) TCP/IP, Web Server
- Comprehensive file manager, rename, list, delete, create backup, save, drag drop upload
- Debug support for Serial Port or TCP/IP (can capture logs from remote location)
Project Samples
