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Adventurer 4 Series

GhostTypes edited this page Mar 21, 2026 · 3 revisions

Adventurer 4 Series

The Adventurer 4 series comprises the Adventurer 4 Pro and Adventurer 4 Lite. Both are TCP-only printers with no HTTP REST API, sharing an identical 33-command TCP protocol on port 8899.

Overview

Feature Adventurer 4 Pro Adventurer 4 Lite
Product ID 0x001E 0x0016
Firmware Version v1.2.1 (Sept 2023) v2.0.5 (May 2022)
Build Volume 220 × 200 × 250 mm 220 × 200 × 250 mm
HTTP API (port 8898) No No
TCP API (port 8899) Yes (33 commands) Yes (33 commands)
Camera MJPEG on port 8080 (optional) MJPEG on port 8080 (optional)
Authentication None None
Cloud Services Polar3D + FlashCloud Polar3D + FlashCloud
Architecture ARM 32-bit ARM 32-bit
UI Framework Qt 4.8.6 Qt 4.8.6

Variant Comparison

The Pro and Lite share the same TCP command set and protocol behavior. Both models expose exactly 33 TCP commands with identical syntax and response formats. The only differences are Product ID, firmware version timelines, and hardware capabilities.

Protocol Architecture

Protocol Port Status
TCP Control 8899 Primary and only control interface
UDP Discovery 19000 Multicast on 225.0.0.9
Camera HTTP 8080 MJPEG stream (optional accessory)
HTTP REST 8898 Not available

TCP Commands

All 33 commands supported by both the Pro and Lite:

Motion

Command Description
G1 Linear move
G28 Home axes
G90 Absolute positioning
G91 Relative positioning
G92 Set position

Stepper Control

Command Description
M17 Enable steppers
M18 Disable steppers (warning: Z may drop)

Job Control

Command Description
M23 Select file for printing
M24 Start / resume print
M25 Pause print
M26 Stop / cancel print
M27 Report print status and progress

File Operations

Command Description
M28 Start binary file upload
M29 End binary file upload
M661 List files on printer storage
M662 Get file thumbnail (PNG with custom header)
M663 Get enhanced position (XYZEF)

Status Queries

Command Description
M105 Get current / target temperatures
M114 Get current XYZ position
M115 Get firmware info (name, SN, build volume, MAC)
M119 Get endstop status, machine status, LED state

Temperature

Command Description
M104 Set extruder temperature
M108 Cancel heat wait (stubbed on some firmware)
M140 Set bed temperature

Fan / LED

Command Description
M106 Fan on (on/off only, no variable speed)
M107 Fan off
M144 LED on (EEPROM write — avoid frequent use)
M145 LED off (EEPROM write — avoid frequent use)
M146 Set LED RGB color (preferred, no EEPROM wear)

Session / Config

Command Description
M601 S1 Request control session
M602 Release control session
M610 Rename printer (triggers network restart)

Calibration

Command Description
M650 Get calibration values

Safety

Command Description
M112 Emergency stop (immediate halt)

Discovery Protocol

The Adventurer 4 series uses the legacy UDP discovery protocol.

Property Value
Multicast Address 225.0.0.9
Port 19000
Packet Size 140 bytes (Big Endian)

Packet Structure

Offset Size Type Description
0x00 128 char[] Machine Name (null-terminated)
0x80 4 bytes Padding
0x84 2 uint16 Command Port (typically 8899)
0x86 2 uint16 Vendor ID
0x88 2 uint16 Product ID (Pro: 0x001E, Lite: 0x0016)
0x8A 2 uint16 Status Code (0=Ready, 1=Busy)

Important: The 140-byte legacy discovery packet does not contain the serial number. Retrieve the serial number via TCP ~M115 after connecting.

See Discovery Protocol for the complete discovery specification.

Camera

When the optional camera accessory is installed, both models serve an MJPEG stream via a custom OutputHttp class (not MJPG-Streamer).

Property Value
Port 8080
Format MJPEG over HTTP
Availability Optional accessory

State Model

The Adventurer 4 reports machine status via ~M119 (MachineStatus field) and ~M27 (print progress), identical to the Adventurer 3 series.

MachineStatus Description
READY Idle, ready to accept commands
BUILDING_FROM_SD Printing from storage
BUILDING_COMPLETED Print finished
PAUSED Print paused
BUSY Processing non-printing operation

See State Machines for the unified state model across all printer families.

Differences from 5M / AD5X

Feature Adventurer 4 Series 5M / AD5X Series
Primary Protocol TCP only HTTP REST (primary) + TCP (fallback)
HTTP API None Full REST API on port 8898
Authentication None required Serial number + check code
File Upload M28/M29 binary over TCP HTTP multipart (/uploadGcode)
Architecture ARM 32-bit ARM Cortex-A7 (5M) / MIPS32 (AD5X)
Material Station No AD5X only (IFS, 4 slots)
Air Filtration No 5M Pro only

HTTP API Clarification

Despite the presence of libmicrohttpd in the Adventurer 4 firmware, no HTTP API is exposed on port 8898. The library exists in the system libraries but is not used by the printer application. The TCP protocol on port 8899 is the only control interface available.

This has been confirmed through testing on both Pro and Lite models.

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