RadioMaster XR1 Nano Multi-Frequency ExpressLRS Dual-Band Receiver (2.4GHz & 868/915MHz)

Introduction

The RadioMaster XR1 Nano is a highly versatile and ultra-compact ExpressLRS receiver designed for the demanding FPV and UAV community. Measuring just 20x13mm, it integrates cutting-edge Semtech LR1121 third-generation transceiver technology, enabling seamless dual-band operation across both 2.4GHz and Sub-G 868/915MHz frequencies. This receiver is engineered to deliver exceptional signal range and sensitivity, making it perfect for a wide array of drone builds where size and weight are paramount. With the robust and reliable performance of ExpressLRS, pilots can focus entirely on their flights, confident in the quality of their control link.

Key Advantages

• Dual-Band Operation: Seamlessly switch between 2.4GHz and 868/915MHz Sub-G frequencies for optimal performance in various environments.
• Ultra-Compact Design: With dimensions of only 20x13mm, it's ideal for the smallest and lightest FPV builds.
• ExpressLRS Reliability: Benefit from the industry-leading low latency and high packet rate of the ExpressLRS protocol.
• Built-in Wi-Fi: Simplifies firmware updates and configuration through an intuitive WebUI accessible from any computer or mobile device.
• Powerful Performance: Features the high-performance ESP32C3 MCU and Semtech LR1121 RF chip for robust signal reception.
• High RF Telemetry Power: Offers 100mW RF telemetry power for clear feedback from your drone.
• Easy Integration: Includes an additional UART port and convenient solder pads for straightforward installation.
• Lightweight: Weighing only 1.0g (without antennas), it adds minimal burden to your drone's weight.

Technical Specifications

• Product: XR1 Nano Multi-Frequency ExpressLRS Receiver
• Type: ISM2.4 or FCC915
• MCU: ESP32C3
• RF Chip: Semtech LR1121
• RF Connector: IPEX-1
• Antenna: 1x 2.4 GHz T-antenna, 1x 868/915 MHz T-antenna
• Frequency Range: 2.4 GHz and Sub-G 868/915 MHz
• Telemetry Power: 100 mW
• Max Packet Rate: DK500 Hz / K1000 Hz
• Min Packet Refresh Rate: 50 Hz
• Operating Voltage: 5 V
• Weight: 1.0 g (without antenna)
• Dimensions: 20 x 13 x 3 mm
• Firmware Version: ExpressLRS v3.5.1 pre-installed
• FW Target: RadioMaster XR1 2.4/868/915 RX
• Bus Interface 1: CRSF
• Bus Interface 2: UART

Applications

This versatile receiver is perfect for a wide range of FPV applications, including freestyle drones, racing drones, long-range exploration, cinematic FPV, and custom UAV builds. Its dual-band capability makes it suitable for various flying environments and distances.

Compatibility

The XR1 Nano receiver uses the CRSF and UART bus interfaces, making it compatible with most modern FPV flight controllers. It operates on a 5V supply voltage. The included antennas are designed for the specified frequency bands.

FAQ

What makes the RadioMaster XR1 Nano receiver stand out for FPV builds?

The XR1 Nano stands out due to its ultra-compact size (20x13mm) and dual-band ExpressLRS capability (2.4GHz and 868/915MHz). This combination offers exceptional range, reliability, and minimal weight, making it ideal for space-constrained drone builds where performance is crucial.

How do I configure and update the RadioMaster XR1 Nano receiver?

Configuration and firmware updates are simplified thanks to the built-in Wi-Fi. You can easily access the intuitive WebUI from your computer or mobile device to manage settings and update the ExpressLRS firmware without needing a direct connection.

What are the key technical advantages of the Semtech LR1121 chip in this receiver?

The Semtech LR1121 chip is a third-generation transceiver that powers the XR1 Nano's dual-band functionality. It ensures high performance, excellent range, and sensitivity across both 2.4GHz and 868/915MHz frequencies, contributing to a stable and reliable control link for your FPV drone.

Where can I buy the RadioMaster XR1 Nano receiver with reliable delivery?

You can buy the RadioMaster XR1 Nano receiver directly from HTDRONE. We offer fast shipping within Poland and reliable worldwide delivery via DHL, ensuring you receive your FPV components quickly and efficiently.

Is the RadioMaster XR1 Nano compatible with different flight controllers?

Yes, the XR1 Nano features CRSF and UART bus interfaces, making it compatible with a wide range of modern FPV flight controllers. It operates on a 5V supply, ensuring broad integration possibilities for your custom drone builds.