Wheeltec 4G Image Transmission & Control Module

The WHEELTEC FG40 is a professional-grade, high-reliability 4G LTE cellular communication module, purpose-built for remote control, real-time image transmission, and wireless networking for ROS robots, unmanned vehicles, embedded systems, and industrial equipment. As a LTE Cat 4 full-network module, it delivers unrestricted long-range wireless connectivity, ultra-stable outdoor network performance, and comprehensive software and hardware compatibility, enabling seamless remote operation of your robotic and embedded devices from anywhere with cellular coverage.

Core Performance & Full Network Coverage

Unrestricted Long-Range Remote Control

This module breaks the limits of short-range wireless communication, enabling remote control and real-time image transmission of your robotic platform with ultra-low latency, completely free from distance constraints. Whether your robot is operating across the city or in a remote field, you can maintain stable, responsive control and clear video feed without interference from distance.

Ultra-Stable Outdoor Network Performance

Engineered for mobile robotic applications, the FG40 delivers exceptional network stability in harsh outdoor operating conditions. Even when mounted on a fast-moving, high-vibration robotic platform with frequent bumps and jolts, the module maintains a reliable cellular connection and will not drop the network link, ensuring continuous, uninterrupted communication for your mobile devices.

Multi-Network Standard Full Coverage

The module supports comprehensive network standards to ensure reliable operation in all cellular coverage environments:

• 4G LTE: LTE Cat 4 standard, with LTE-FDD downlink rate up to 150Mbps / uplink rate up to 50Mbps, and LTE-TDD downlink rate up to 130Mbps / uplink rate up to 30Mbps
• 3G UMTS: Supports HSPA+ (downlink up to 21Mbps), HSPA (uplink up to 5.76Mbps), and WCDMA (384Kbps uplink/downlink)
• 2G GSM/GPRS/EDGE: Backward compatible with EDGE (236.8Kbps uplink/downlink) and GPRS (85.6Kbps uplink/downlink), ensuring normal operation even in areas with limited or no 3G/4G network coverage

Full-Network Frequency Band Support

The module is optimized for full domestic 4G/3G/2G network compatibility, with support for the following frequency bands:

• LTE-FDD: B1/B3/B5/B8
• LTE-TDD: B34/B38/B39/B40/B41
• WCDMA (3G): B1/B5/B8
• GSM (2G): EGSM900/DCS1800

Robust Hardware Design & Build Quality

High-Precision CNC Metal Enclosure

The FG40 features a high-precision CNC machined metal housing, which delivers exceptional mechanical strength and long-term durability, with a premium, sleek finish. The back of the module is pre-drilled with M3 threaded mounting holes, allowing you to securely and conveniently fix the module onto your robot chassis, device housing, or mounting bracket with no additional structural modification required.

Compact Form Factor & Lightweight Design

• Product dimensions (without antenna): 78.63715.6mm
• Total height with antenna: 133mm
• Product weight (without antenna): 65g
  The ultra-compact, lightweight design makes the module easy to integrate into space-constrained robotic platforms and embedded devices, with no impact on the overall size or weight of your system.

High-Gain Antenna for Enhanced Signal Reception

The module is equipped with a high-gain omni-directional antenna via an SMA inner pin outer screw interface, which significantly improves cellular signal reception and transmission performance, ensuring stable network connectivity even in areas with weak signal coverage.

Rich Interfaces & Clear Indicator Design

Complete Interface Configuration

The module integrates a full set of interfaces for flexible connectivity and debugging, with clearly labeled pin definitions for ease of use:

1. Type-C Interface: The main communication and power interface, with integrated 5V power input, GND, TX, and RX pins, supporting both power supply and data communication via a single cable.
2. XH1.25*4PIN Terminal: A dedicated serial port debugging interface with 3.3V logic voltage, for secondary development, parameter configuration, and serial debugging of the module.
3. Nano SIM Card Slot: A side-mounted SIM card slot that supports 1.8V/3.0V USIM/SIM cards, compatible with domestic 4G full-network SIM cards and IoT cards (SIM card is not included in the package and needs to be prepared by the user; IoT cards for dedicated software/device access are not supported).
4. SMA Antenna Interface: Standard SMA inner pin outer screw interface for connecting the included high-gain cellular antenna.

Intuitive Status Indicators

The module is equipped with two clearly marked LED indicators for real-time working status monitoring:

• PWR Power Indicator: Lights up solid when the module is powered on, providing clear power status feedback.
• NET Network Indicator: Indicates the network connection status of the module, allowing you to quickly confirm the cellular link status at a glance.

Power Supply Requirements

The module requires a power supply of 5V 2A (10W) to ensure stable, full-performance operation in all network conditions.

Full Software Compatibility & Protocol Support

Wide Operating System Compatibility

The FG40 is fully compatible with mainstream operating systems, including Windows, Linux, and Android, making it adaptable to nearly all embedded platforms, single-board computers, and host devices.

Comprehensive Communication Protocol Support

The module supports a full range of mainstream communication protocols, enabling flexible secondary development and diverse application deployment:TCP/UDP/PPP/NTP/NITZ/FTP/HTTP/PING/CMUX/HTTPS/FTPS/SS/FILE/MQTT/MMS/SMTP/SMTPS

Flexible Internet Access Methods

Supports RNDIS and ECM internet access modes, compatible with different host device network configurations for plug-and-play internet connectivity.

Full SMS Functionality

Supports both text and PDU SMS modes, with point-to-point SMS sending and receiving, as well as cell broadcast SMS support, for remote data transmission and alert notification applications.

Native Compatibility with All WHEELTEC ROS Robots

The FG40 module is fully optimized and compatible with all WHEELTEC ROS robots, with pre-tested and validated support for:

• ROS educational robots
• ROS robotic arm robots
• Ackermann steering robots
• Brushless four-wheel drive robots
• differential drive service robots
• Open-source composite robots

When purchased together with a WHEELTEC ROS robot, we will pre-configure and fully debug all 4G related functions before delivery, enabling out-of-the-box remote image transmission and robot control with no additional setup required from the user.

Complete Development Resources & Documentation

We provide a comprehensive, full set of product resources to support your development and deployment, with high-speed download access that requires no Baidu Netdisk membership, and lifetime free product documentation updates:

1. Complete Hardware Documentation: Including hardware datasheets, dimensional drawings, and 3D product models for mechanical design and integration.
2. Official Device Drivers: Pre-tested drivers for all compatible operating systems, ensuring stable device recognition and operation.
3. Automatic IP Acquisition Scripts: Ready-to-use scripts for one-click network configuration and IP address acquisition, simplifying the internet setup process.
4. Detailed Step-by-Step User Manual: A comprehensive v1.0 user manual covering all aspects of the module, including:
   • Module introduction and basic configuration
   • Universal internet configuration (driver installation, minicom tool setup, network port internet access, 4G network information query via minicom)
   • Internet configuration notes for mainstream host controllers (Orin series, Raspberry Pi, Luban Cat 1S)
   • Remote desktop software (ToDesk) installation, configuration, and troubleshooting

5. 3D Product Model: A complete 3D model of the module and antenna, provided for mechanical design, enclosure customization, and installation planning.

Wide Range of Application Scenarios

The FG40 4G module is suitable for a broad spectrum of wireless communication and remote control applications, including but not limited to:

• Remote control and real-time image transmission for ROS robots and autonomous mobile robots (AMRs)
• Remote monitoring and control of outdoor unmanned vehicles and AGVs
• Remote networking and debugging of embedded systems and industrial equipment
• Remote data acquisition and alert notification for IoT devices
• Field operation equipment with long-range wireless communication requirements
• Educational and research robotic platforms with remote operation needs

Package Contents

• 1 x WHEELTEC FG40 4G Remote Control & Image Transmission Module
• 1 x 50cm Type-C Data Cable
• 1 x High-Gain 4G Cellular Antenna

Detailed Technical Specifications