EMAX Aeris Link ExpressLRS ELRS RF Module

1. Introduction

The EMAX Aeris Link is a revolutionary open-source ExpressLRS (ELRS) transmitter module designed to enhance your FPV flying experience. It offers unmatched performance, extended range, and signal stability, making it suitable for various FPV applications.

This manual provides detailed instructions for the setup, operation, and maintenance of your Aeris Link module, ensuring you get the most out of its advanced features.

2. Product Variants

The EMAX Aeris Link is available in several configurations to suit different remote control systems and frequency requirements:

• Aeris Link Micro ExpressLRS: Designed for remote controls with a Nano Interface. Available in 2.4GHz and 915MHz versions.
• Aeris Link TX ExpressLRS: Designed for remote controls with a JR Interface. Available in 2.4GHz and 915MHz versions.

Both Micro and TX versions feature an OLED screen and a cooling fan for optimal performance.

Aeris Link Micro 2.4Ghz

Aeris Link Micro 915Mhz

Aeris Link TX 2.4Ghz

Aeris Link TX 915Mhz

3. Key Features

• 1.29-inch OLED Screen: Provides clear and easy access to essential flight control information and settings.
• Adjustable Output Power: Configurable from 10mW (default) up to 1000mW (2.4G versions) or 2000mW (915MHz versions) for unparalleled range and signal stability.
• Open-Source ELRS: Leverages the powerful and flexible ExpressLRS ecosystem.
• CRSF and OpenTX Support: Ensures seamless compatibility with a wide range of remote control systems.
• Versatile Interfaces: Micro versions support Nano Interface, TX versions support JR Interface. Both feature a Type-C interface for configuration.
• XT30 External Power: Reliable power input (5-21V, recommended 2S/8.4V) for consistent performance.
• Integrated Cooling Fan: Maintains optimal operating temperatures during high-power transmission.

Infographic highlighting key features of the Aeris Link modules.

4. Specifications

Note: Specifications are subject to change without prior notice.

5. Setup

5.1 Physical Connection

• Aeris Link Micro ExpressLRS: Connect to your remote control's Nano Interface.
• Aeris Link TX ExpressLRS: Connect to your remote control's JR Interface.
• The GND/VCC/CRSF interface can be used for connection even without the dedicated JR interface.

5.2 Power Connection

The Aeris Link module requires external power via its XT30 interface. It accommodates a voltage input range of 5-21V. For optimal performance and reliability, a 2S (8.4V) power source is recommended.

5.3 LUA Script Installation

To ensure proper functionality and control of your Aeris Link module, you need to install the correct LUA script on your remote control:

1. Download the elrsV3.lua script file.
2. Import this file to the TF card of your remote control.
3. Navigate to the SCRIPTS>TOOLS directory on your remote control's TF card.
4. Delete any existing elrsV2.lua file from this directory.

The module is suitable for HF head of version 3.3.

6. Operating Instructions

6.1 Using the OLED Screen

The 1.29-inch OLED screen provides real-time information and allows you to navigate through settings. Refer to your remote control's manual for specific instructions on accessing and interacting with external module screens via OpenTX/EdgeTX.

6.2 Adjusting Output Power

The Aeris Link allows you to adjust the output power from 10mW (default) to higher levels. This can be done through the LUA script on your remote control.

Important Note on Power Adjustment:

According to relevant regulations, the default power of the product is 10mW. If you need to change the power, please ensure you check local regulations and obtain permission from relevant authorities before increasing the output power. Operating at higher power levels without proper authorization may be illegal in your region.

6.3 Telemetry Ratio Settings

The telemetry ratio can be configured via the LUA script to optimize data feedback from your FPV craft. Options include Off, 1:128, 1:64, 1:32, 1:16, 1:8, 1:4, and 1:2. Adjust this setting based on your specific needs and flight conditions.

7. Maintenance

• Cooling Fan: The module is equipped with a cooling fan to dissipate heat during operation, especially at higher power outputs. Ensure the fan is free from obstructions (dust, debris) to maintain effective cooling. Periodically inspect and gently clean the fan if necessary.
• General Care: Keep the module clean and dry. Avoid exposing it to extreme temperatures, moisture, or direct sunlight for prolonged periods.
• Firmware Updates: As an open-source ELRS product, firmware updates may be released periodically. Check the official EMAX or ExpressLRS community channels for the latest firmware and update instructions to ensure optimal performance and access to new features.

8. Troubleshooting

• Module Not Detected: Ensure the module is securely connected to the Nano or JR interface of your remote control. Verify that the remote control's external module settings are correctly configured.
• No Signal/Poor Range: Check antenna connections on both the module and the receiver. Ensure the output power is set appropriately for your environment and legal limits. Verify that the LUA script is correctly installed and configured.
• OLED Screen Not Displaying: Confirm the module is receiving power. Check connections and ensure the remote control is properly communicating with the module.
• LUA Script Errors: Double-check that the elrsV3.lua script is correctly placed on the TF card and that any older elrsV2.lua files have been removed from the SCRIPTS>TOOLS directory.
• Overheating: Ensure the cooling fan is operating correctly and is not obstructed. Reduce output power if persistent overheating occurs in enclosed spaces.

9. User Tips

• Antenna Placement: Always ensure your antenna is properly attached and oriented for the best signal reception and transmission.
• Power Management: When using external power via XT30, monitor your battery voltage to avoid unexpected power loss during flight.
• Regular Checks: Before each flight, perform a range check and verify all settings on your OLED screen to ensure optimal performance and safety.
• Community Resources: The ExpressLRS community is a great resource for tips, troubleshooting, and firmware updates. Engage with other users for shared knowledge.

10. Warranty and Support

For warranty information and technical support, please refer to the official EMAX website or contact your authorized dealer. Keep your proof of purchase for any warranty claims.

EMAX is committed to providing high-quality products and support. If you encounter any issues not covered in this manual, please reach out to their customer service for assistance.