Emax Aeris Link Micro ExpressLRS 2.4G/915M User Manual and Technical Specifications

Product Overview

The Emax Aeris Link Micro ExpressLRS 2.4G/915M is a new generation remote control wireless system based on the open-source ExpressLRS project. It offers long-range control, stable connection, low latency, high refresh rates, and flexible configuration.

Visit our websites for more information: www.emaxmodel.com and www.emax-usa.com.

Disclaimer

Before using this product, users are advised to carefully read this disclaimer. By using this product, it is deemed that the user fully acknowledges and accepts all the contents of this disclaimer. Individuals under the age of 18 are not suitable to use this product.

The Aeris Link Micro ExpressLRS 2.4G/915M high-frequency module is a new generation remote control wireless system developed based on the open-source project ExpressLRS. The ExpressLRS system features long-range remote control, stable connection, low latency, high refresh rate, and flexible configuration. When using this product, please carefully read the user manual and follow the instructions. Ensure that the power supply system is in good condition and the operations are correct. In the event of personal injury, property damage (direct or indirect), Emax will not assume any civil or legal liability.

Safety Precautions

Please assemble and operate this product correctly following the instructions provided.
Avoid dropping or impacting the product to prevent malfunctions.
Do not block the ventilation openings to prevent overheating.
If you experience any discomfort during use, stop using the product immediately and resume use only with the permission of a doctor.
Do not use this product while under the influence of alcohol, drugs, medication that causes drowsiness, or in a weakened or mentally impaired state.
Do not disassemble, modify, or use other parts and accessories beyond the recommended configurations.
Avoid using a damaged high-frequency module to prevent short circuits or fires.
Do not immerse the product in water.
Do not use this product in harsh environmental conditions such as strong winds, rainy days, lightning, or snow.
Avoid using this product in environments with strong electromagnetic interference.

Description

The Aeris Link Micro ExpressLRS 2.4G/915M module features several components:

Diagram Description

The diagram shows the module with various connection points and antennas. The main unit is rectangular with ventilation grilles and ports. Two antennas are depicted, one for 915MHz and one for 2.4GHz.

Component List:

1. 915M-T Type Antenna: The antenna for the 915MHz frequency band.
2. 2.4G-T Type Antenna: The antenna for the 2.4GHz frequency band.
3. Antenna Interfaces: For the 915M Version, it's an SMA-KY external thread with a female connector. For the 2.4G Version, it's an RP-SMA-KY external thread with a male connector.
4. RGB LED Lights / Fan Ventilation / Heat Dissipation Port: Indicates the location for LED lights, fan, and heat dissipation.
5. Ventilation Port: Openings for airflow to cool the module.
6. Power (XT30) Interface: Connector for external power input.
7. Type-C Interface: USB Type-C port, likely for configuration or firmware updates.
8. NC: Not Connected pin.
9. CRSF: Crossfire serial data protocol connection.
10. GND: Ground connection.
11. 5-21V: Power input range.
12. Reset button: Button to reset the module.
13. Flash button: Button used for firmware flashing.

Operation Instructions

Follow these steps for basic operation, using OpenTX remote control system as an example:

Start by selecting "MODEL" from the main menu.
Once in the "MODEL" menu, navigate to the "TOOLS" interface.
Within the "TOOLS" interface, locate and select "ExpressLRS" to enter the information screen related to ExpressLRS configuration.

Configuration Parameters:

Parameter Category	Parameter Options	Illustration/Notes
1. Packet Rate	2.4G Version: 50hz (Purple light) 100hz FULL (Purple light) 150hz (Deep blue light) 250hz (Light blue light) 333hz FULL (Light blue light) 500hz (Blue-green light) D250hz (Green light) D500hz (Yellow-green light) F500hz (Orange light) F1000hz (Orange light)	2.4G Version: The refresh rate can be adjusted to change the color of the LED lights and fan. The default setting is 250hz (blue light). It is recommended to use firmware version 2.7.1 or higher to run the F1000Hz mode.
	915M Version: 25hz (Purple light) 50hz (Blue light) 100hz (Blue-green light) 100hz Full (Yellow-green light) 200hz (Red light)	915M Version: The refresh rate can be adjusted to change the color of the LED lights and fan. The default setting is 50hz (blue light).
2. Telem Ratio	Std OFF 1:128, 1:64, 1:32, 1:16, 1:8, 1:4, 1:2 Race	Default setting is "Std" (1:128).
3. Switch Mode	Wide, Hybrid, 8ch, 16ch Rate, 12ch Mixed	2.4G Version, default setting is "Wide". 915M Version: (No default specified, but options are listed).
4. Model Match	OFF(ID:0), On (ID:0)	Default Wide
5. TX Power	Max Power: 2.4G Version: 10mW, 25mW, 50mW, 100mW, 250mW, 500mW, 1000mW 915M Version: 10mW, 25mW, 50mW, 100mW, 250mW, 500mW, 1000mW, 2000mW Dynamic: OFF, Dyn, AUX9, AUX10, AUX11, AUX12 Fan Thresh: 10mW, 25mW, 50mW, 100mW, 250mW, 500mW, 1000mW, 2000mW, Never	2.4G Version: The maximum power is 1W, adjustable based on needs. Default is 10mW. 915M Version: The maximum power is 2W, adjustable based on needs. Default is 10mW. Dynamic: Default OFF. Fan Thresh: The fan starts corresponding to the power switch and can be adjusted. It starts by default at 10mW.
6. VIX Administrator	Band: OFF, A, B, E, F, R, L Channel: 1, 2, 3, 4, 5, 6, 7, 8 Pwr Lvl: (1, 2, 3, 4, 5, 6, 7, 8) Pitmode: OFF, On, AUX1↑, AUX1↓, AUX2↑, AUX2↓, AUX3↑, AUX3↓, AUX4↑, AUX4↓, AUX5↑, AUX5↓, AUX6↑, AUX6↓, AUX7↑, AUX7↓, AUX8↑, AUX8↓, AUX9↑, AUX9↓, AUX10↑, AUX10↓	Band: Default OFF. Channel: Default 1. Pwr Lvl: Default -. Pitmode: Default OFF.
7. WiFi Connectivity	Enable WiFi Enable Rx WiFi Enable Backpack WiFi Enable VRx WiFi	The high-frequency module has enabled WiFi functionality for firmware updates. Access via: http://10.0.0.1. Enable Rx WiFi: P/#expresslrs
8. Backpack	DVR Rec: OFF, AUX1↑, AUX1↓, AUX2↑, AUX2↓, AUX3↑, AUX3↓, AUX4↑, AUX4↓, AUX5↑, AUX5↓, AUX6↑, AUX6↓, AUX7↑, AUX7↓, AUX8↑, AUX8↓, AUX9↑, AUX9↓, AUX10↑, AUX10↓ DVR Srt Dly: 0s, 5s, 15s, 30s, 45s, 1min, 2min DVR Stp Dly: 0s, 5s, 15s, 30s, 45s, 1min, 2min	DVR Rec: Default OFF. DVR Srt Dly: 0s. DVR Stp Dly: 0s.
9. BLE Joystick	(No options listed)	(No illustration/notes provided)
10. Bind	Version: V3.0	The high-frequency module enters the binding state. Note: When the high-frequency module enters the binding state, there will be no light flashing or other visual indications. After 5 seconds, the module will automatically exit the binding state. Note: If you have updated the firmware of the high-frequency module and configured a binding password (Binding Phrase), you won't be able to enter the binding state using the previous method. In this case, please set the receiver with the same binding password, and module and receiver will automatically establish a binding connection.

Product Specifications

Specification	Details
Weight	Approximately 39g (excluding antenna)
Dimensions	72 x 32 x 32mm (excluding antenna)
Operating Frequency	2.4G Version: 2.4GHz ISM. 915M/868M Version: 915MHz FCC/868MHz EU
Output Power	10mW (default) 2.4G Version: Supports adjustable power levels of 25mW/50mW/100mW/250mW/500mW/1000mW. 915M Version: Supports adjustable power levels of 25mW/50mW/100mW/250mW/500mW/1000mW/2000mW
Refresh Rate	2.4G Version: 50hz, 100hz FULL, 150hz, 250hz, 333hz FULL, 500hz, D250hz, D500hz, F500hz, F1000hz. 915M Version: 25hz, 50hz, 100hz, 100hz Full, 200hz
Antenna	2.4G Version: Comes with a built-in gain T-shaped antenna, and can also use other antennas with RP-SMA-J internal thread and female connector. 915M Version: Comes with a built-in gain T-shaped antenna, and can also use other antennas with SMA-J internal thread and male connector.
Configuration	Supports Crossfire serial data protocol (CRSF) signal and uses LUA scripts to control the high-frequency module. Compatible with OpenTX remote controllers.
Interface	Type-C interface.
External Power	XT30 interface (supports voltage input of 5-21V, recommended to use 2S (8.4V))

Product List

2.4G Version:

Eris Link Micro ExpressLRS 2.4G (Complete set) - X1
2.4G-T Type Antenna - X1
Product Introduction Manual/Website Card - X1

915M Version:

Eris Link Micro ExpressLRS 915M (Complete set) - X1
915M-T Type Antenna - X1
Product Introduction Manual/Website Card - X1

Regarding the disposal of the product

This product (plastic casing with printed circuit board inside) should be disposed of following the local residential waste disposal regulations. Please adhere to the guidelines provided by your local authorities for proper waste disposal. Avoid disposing of electronic products with regular household waste, as they may contain hazardous materials that can harm the environment if not handled correctly. Instead, look for designated electronic waste recycling facilities or collection points in your area to ensure responsible and environmentally friendly disposal.

Reminders

Avoid prolonged usage to prevent discomfort. If you experience any discomfort while using the product, stop using it immediately, and continue only after getting approval from a doctor. This product is not suitable for individuals under the age of 18.
Before powering on the product, ensure that the matching antenna is properly installed to avoid damaging the chip.
When operating the product at high power output, use an external power source to prevent inadequate power supply to the remote controller.
When changing the power, please follow the relevant local laws and regulations!

Thank you for choosing EMAX products!

Visit our websites: www.emaxmodel.com and www.emax-usa.com.

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Emax Aeris Link Micro ExpressLRS 2.4G/915M