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An ESP32S3 WiFi Focuser (ALPACA-ASCOM-LINUX-INDI-TCPIP-WINDOWS)
(c) Robert Brown 2014-2026, Holger M, 2019-2021. All rights reserved.
Code or portions of code may not be copied or used without credit given to authors.
Read Part1 pdf to determine the board you will need, then download those board files. Downloading all files will cause confusion and hinder your project progress. Both PCB and DIY are supported. After creating the board. go to UserGuide Part2 and follow the instructions to program your board.
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
Features
- ESP32S3-N16R8 based WiFi Focus Controller
- Interfaces: ALPACA, ASCOM, curl, INDI, TCP/IP, JSON, Web browser, XHTML
- Comprehensive user guides (pdf) and supplemental documentation
- Easy to assemble DIY or use PCB design (Download free Gerber files)
- Wide range of applications for Android, ASCOM, INDI, Linux, Windows
- Remote Observatory support
- Temperature Probe, supports temperature compensation
- Options: Home Position Switch, Display, IN-OUT LED's, Push Buttons, Joystick, Infra-red remote control
- Support for Zero Lost Steps Controller with CL42T NEMA solution
- Driver Boards CL42T, DRV8825, L298N, 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
- Debug support for Serial Port or TCP/IP (can capture logs from remote location)
- Comprehensive file manager, rename, list, delete, create backup, save, drag drop upload
Project Samples
