Radiomaster XR1 2.4GHz Sub-G 900MHz Dual-Band ExpressLRS Receiver User Manual

1. Introduktion

The Radiomaster XR1 Nano Multi-Frequency ExpressLRS Receiver is a compact and versatile receiver designed for remote control applications. It utilizes the advanced Semtech LR1121 transceiver, supporting both 2.4GHz and Sub-G 900MHz frequency bands. This receiver offers exceptional range and sensitivity, making it suitable for various builds requiring reliable link quality with ExpressLRS systems.

This manual provides detailed instructions for the setup, operation, and maintenance of your XR1 receiver to ensure optimal performance and longevity.

2. Hvad er der i æsken

Image: Package contents including the XR1 receiver, T-Antenna, CRSF wire, and heat-shrinkable tubes.

• 1 x XR1 Nano Multi-Frequency ExpressLRS Receiver
• 1 x T Antenna (Either 2.4GHz, 900MHz, or Dual-band, depending on the selected package)
• 1 x CRSF-ledning
• 3 x Heat-Shrinkable Tube
• 1 x Manual Card (This document)

3. Nøglefunktioner

Billede: Overview of the XR1 receiver's main features.

• Dual-band betjening: Supports both 2.4GHz and Sub-G 900MHz frequency bands using the Semtech LR1121 transceiver.
• Kompakt størrelse: Ultra-compact design, measuring 20mm x 13mm.
• Høj ydeevne: Equipped with an ESP32C3 high-performance MCU.
• Telemetri: Provides 100mW telemetry RF power.
• Nem konfiguration: Built-in Wi-Fi for effortless configuration and firmware updates via an intuitive WebUI.
• Fleksibel tilslutning: Features a secondary UART port and castled pads for easy soldering.
• ExpressLRS-kompatibilitet: Pre-installed with ExpressLRS v3.5.1 firmware.

4. Opsætningsvejledning

4.1. Ledningsdiagram

Connect the XR1 receiver to your flight controller or compatible device using the provided CRSF wire. Ensure correct polarity for power (5V) and ground (GND), and proper connection for RX and TX data lines.

Billede: Detaljeret view of the XR1 receiver's connection pads.

• 5V: Power input (5 Volts DC)
• GND: Jord
• TX: Transmit data (connect to RX on flight controller)
• RX: Receive data (connect to TX on flight controller)

4.2. Installation af antenne

Attach the T-Antenna to the IPEX-1 connector on the receiver. Ensure the antenna is securely connected and positioned away from carbon fiber or other conductive materials for optimal signal reception.

Image: Various antenna options for the XR1 receiver.

The XR1 receiver supports 2.4GHz or Sub-G 900MHz. If you have a Dual-Band antenna, it allows for use of either frequency without needing to change antennas.

4.3. Bindende procedure

The XR1 receiver comes with ExpressLRS v3.5.1 pre-installed. To bind the receiver to your ExpressLRS transmitter:

1. Power on the receiver three times, cycling power quickly between each power-on. The LED on the receiver should flash rapidly, indicating it is in binding mode.
2. On your ExpressLRS compatible transmitter, navigate to the ExpressLRS LUA script or menu and select the "Bind" option.
3. Once bound, the LED on the receiver will turn solid, indicating a successful connection.

For detailed binding instructions specific to your transmitter, refer to your transmitter's user manual or the official ExpressLRS documentation.

4.4. Firmware Updates and Configuration (Wi-Fi)

The XR1 features built-in Wi-Fi for convenient firmware updates and configuration. To access the WebUI:

1. Tænd for modtageren.
2. Connect to the Wi-Fi network broadcast by the receiver (usually named "ExpressLRS_RX" followed by a unique identifier).
3. Åbn a web browser og naviger til http://10.0.0.1.
4. Fra WebUI, you can update firmware, change settings, and configure your receiver.

5. Betjeningsvejledning

5.1. Tænding og første kontrol

After successful setup and binding, power on your model. The receiver's LED should illuminate solid, indicating a stable connection to your transmitter. Perform a range check and verify all control surfaces respond correctly before flight.

5.2. Telemetri

The XR1 receiver provides 100mW telemetry RF power, allowing your transmitter to receive real-time data from your model, such as RSSI (Received Signal Strength Indicator), link quality, and battery voltage (if configured). Refer to your flight controller and transmitter documentation for telemetry setup and display.

5.3. Kompatibilitet

The XR1 receiver is compatible with all existing Radiomaster ExpressLRS radios and modules. Ensure your transmitter module is also running a compatible ExpressLRS firmware version.

Image: Compatibility chart for Radiomaster ExpressLRS radios and modules.

6. Vedligeholdelse

• Hold rent: Undersøg regelmæssigt modtageren for snavs, støv eller affald. Brug en blød, tør børste eller trykluft til at rengøre den.
• Beskyt mod fugt: The XR1 is not water-resistant. Avoid exposure to moisture or extreme humidity. If exposed, ensure it is completely dry before powering on.
• Antenne inspektion: Periodically check the antenna for any damage or loose connections. A damaged antenna can significantly reduce range and signal quality.
• Firmwareopdateringer: Keep the receiver's firmware updated to the latest version to benefit from performance improvements and new features. Use the Wi-Fi WebUI for updates.

7. Fejlfinding

8. Specifikationer

Image: Physical dimensions of the XR1 receiver.

Image: Weight of the XR1 receiver.

Image: LR1121 Receiver Frequency Compatibility Chart.

9. Support og garanti

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Radiomaster customer support through their official webwebstedet eller den forhandler, hvorfra du købte produktet.

Please retain your proof of purchase for any warranty claims. Warranty terms and conditions may vary by region and retailer.

Official Radiomaster Store: Radiomaster Store on Amazon