The documentation section will help you on:
Syntax and parameters
What is authentication in ESP3D?
Setup and configuration
Camera configuration
Update feature description
SD Card usage and shared SD mechanism
FTP usage and configuration
WebDav usage and configuration
Telnet settings
mDNS discovery and services
SSDP discovery
USB Serial OTG and USB CDC
Lua interpreter
Compilation Guide
Architecture of ESP3D module clients
Frequent asked questions and their answers
API description