HAPPYMODEL ExpressLRS ES900TX 868MHz Long Range Module User Manual

1. Introdución

This manual provides detailed instructions for the HAPPYMODEL ExpressLRS ES900TX 868MHz Long Range Transmitter Module and its accompanying ES900RX Receiver. These modules are designed for FPV drone applications, offering ultra-long range, stable operation, and low latency communication based on the open-source ExpressLRS software. This guide covers installation, operation, and maintenance to ensure optimal performance.

2. Información de seguridade

Please read and understand all safety instructions before using this product. Failure to follow these instructions may result in damage to the product, property, or personal injury.

• Always ensure correct polarity when connecting power to the module. Incorrect connections can cause permanent damage.
• Operate the module within its specified voltage range (5-13V for ES900TX, 5V for ES900RX).
• Avoid touching the module components while powered, especially at high power output, as they may become hot.
• Ensure proper ventilation, especially when operating the ES900TX at high power settings, to prevent overheating.
• Keep the module away from moisture, dust, and extreme temperatures.
• This product is not a toy and is intended for users aged 15 years and older.

3. Contido do paquete

Verifica que todos os elementos estean presentes no teu paquete:

• HAPPYMODEL ExpressLRS ES900TX 868MHz Transmitter Module
• ES900TX Antenna (SMA connector)
• HAPPYMODEL ExpressLRS ES900RX 868MHz Receiver Module
• ES900RX Antenna (IPEX1 connector)
• Heat sink for ES900TX module

4. Produto rematadoview

The ES900TX and ES900RX modules are a high-performance wireless transmission system for FPV applications. They are compatible with most OpenTX remote controllers, including Radiomaster TX16S and Jumper T12/T16/T18 series.

4.1 ES900TX Transmitter Module

The ES900TX is the transmitter component, designed to be installed in the module bay of your compatible radio transmitter. It features a custom heat sink and provisions for an optional 2006 cooling fan to maintain stable operation at high power outputs.

Image: The HAPPYMODEL ExpressLRS ES900TX 868MHz Transmitter Module, shown with its attached antenna. This module is designed for long-range FPV control.

4.2 ES900RX Receiver Module

The ES900RX is the compact receiver module, intended for installation on your FPV drone. It communicates with the flight controller using the CRSF protocol.

5. Configuración

5.1 ES900TX Installation on Radio Transmitter

The ES900TX module is designed for plug-and-play compatibility with radio transmitters featuring a JR-style module bay, such as the Radiomaster TX16S or Jumper T12/T16/T18.

1. Ensure your radio transmitter is powered off.
2. Carefully insert the ES900TX module into the external module bay of your radio transmitter.
3. Secure the module if your radio transmitter provides a locking mechanism.
4. Attach the provided antenna to the SMA connector on the ES900TX module. Ensure it is finger-tight.
5. Power on your radio transmitter. Navigate to the External RF settings and select CRSF protocol.
6. Access the ELRS menu within your radio's system settings.

Image: The HAPPYMODEL ExpressLRS ES900TX module securely installed in the module bay of a compatible radio transmitter, with its antenna connected.

5.2 Binding Procedure (ES900TX to ES900RX)

Follow these steps to bind your ES900RX receiver to your ES900TX transmitter:

1. Prepare ES900RX for Binding:
   a. Supply power to the ES900RX receiver.
   b. Wait until the red LED on the ES900RX turns off.
   c. Immediately disconnect power.
   d. Repeat steps a-c two more times. On the third power-up, the red LED will begin to double flash quickly, indicating the ES900RX is in binding mode.
2. Initiate Binding from ES900TX:
   a. Ensure your ES900TX module is installed in your radio transmitter and configured for CRSF protocol.
   b. Navigate to the ELRS menu in your radio's system settings.
   c. Select and press the [Bind] opción.
3. Verificar a vinculación:
   The red LED on the ES900RX module will turn off, then start blinking slowly, and finally become solid. A solid red LED indicates successful binding.

6. Instrucións de funcionamento

6.1 ES900RX Firmware Update via WiFi

The ES900RX receiver supports firmware updates over WiFi. This is recommended to ensure you have the latest features and improvements from the ExpressLRS project.

1. Enter WiFi Mode:
   a. Make the ES900RX enter binding mode (as described in Section 5.2, step 1).
   b. Wait approximately 1 minute without attempting to bind. The ES900RX will automatically enter WiFi mode.
2. Conectar a un punto de acceso wifi:
   a. On your computer or mobile device, search for available WiFi networks.
   b. Connect to the hotspot named "ExpressLRS RX".
   c. The password for this network is "expresslrs".
3. Access Firmware Update Page:
   a. Abrir a web navegador e navegue ata 10.0.0.1.
   b. On the firmware update page, select the correct firmware file for your ES900RX (e.g., 868MHz version).
   c. Fai clic en "update".
4. Actualización completa:
   The update process will take approximately 1-2 minutes. Once complete, a message indicating "firmware update successful and reboot" will appear. The receiver will then reboot with the new firmware.

6.2 High Power Operation and Cooling

When operating the ES900TX module at output powers greater than 27dBm, it is highly recommended to add a 2006 cooling fan (not included) to the designated installation position. This will help dissipate heat and ensure stable, long-term performance of the module.

7. Especificacións

7.1 ES900TX Transmitter Module Specifications

• MCU: ESP32 + ESP8285
• Dimensión: 55 mm x 39 mm x 11 mm
• Peso: 9.2 grams (module only)
• Conector de antena: SMA
• VCC Input: 5V ~ 13V (Recommended: 5V ~ 9V)
• Frecuencia RF: 868MHz (default for this model)
• Potencia de saída máxima: <33dBm (Cooling fan recommended for >27dBm operation)
• Firmware: WiFi update function available (from v1.0.0 firmware)

7.2 ES900RX Receiver Module Specifications

• MCU: ESP 8285
• VCC Input: 5V
• Operación actual: ~100 mA
• Rx To FC Protocol: CRSF
• Frecuencia RF: 868 MHz (UE)
• Dimensión: 12 mm x 12 mm x 3 mm
• Peso: 0.60 grams (excluding antenna)
• Conector de antena: IPEX1
• Telemetry Output Power: <17 dBm

8 Solución de problemas

• O módulo non se acende: Check power connections and ensure correct voltage entrada.
• Fallo de vinculación: Ensure the ES900RX is correctly put into binding mode (double-flashing LED). Verify the ES900TX is set to CRSF protocol and the [Bind] command is executed.
• No Link After Binding: Check antenna connections on both TX and RX modules. Ensure both modules are running compatible ExpressLRS firmware versions.
• Intermittent Connection/Reduced Range: Verify antenna placement and orientation. Ensure no obstructions are blocking the signal. Consider adding a cooling fan to the ES900TX if operating at high power.
• Problemas de actualización do firmware: Double-check the WiFi password and IP address (10.0.0.1). Ensure the correct firmware target is selected for your module.
• Note on ES900/ES915 Series: The ES900TX and ES900RX modules are a newer version replacing the ES915TX and ES915RX due to component availability. Ensure you are using the correct ExpressLRS firmware target for your specific ES900 series hardware. Refer to the official ExpressLRS documentation for the latest firmware and flashing instructions.

9. Mantemento

• Keep the modules clean and free from dust and debris.
• Regularly inspect antenna connectors for damage or loose connections.
• Store the modules in a dry, cool environment when not in use.
• Periodically check for and update to the latest ExpressLRS firmware for optimal performance and new features.

10. Garantía e soporte

For warranty information and technical support, please refer to the HAPPYMODEL official website or contact your retailer. As ExpressLRS is an open-source project, community support is also available through various online forums and documentation.