Radiomaster XR2 Nano 2.4GHz ELRS receiver

Radiomaster XR2 Nano 2.4GHz ELRS receiver

Product description

The XR2 receiver is a tiny powerhouse designed for 2.4 GHz ExpressLRS and features an integrated tower antenna that provides excellent reception despite its ultra-compact design. With a footprint of just 16 x 12 mm and weighing only 0.8 g, it fits into even the most space-constrained designs. Powered by the advanced Semtech LR1121 transceiver (third generation), the XR2 offers compatibility with all ELRS 2.4 GHz transmitters and unlocks the benefits of DK500Hz mode for LR1121-based systems, ensuring unparalleled reliability and responsiveness. The integrated Wi-Fi module simplifies firmware updates and configuration via a WebUI on your PC or mobile device. With ultra-low latency and high frame rates, the XR2 excels in whoops, micro drones and fixed-wing models where every gram and millimeter counts for peak performance.

Features

• Integrated 2.4 GHz tower antenna
• ExpressLRS 2.4 GHz
• ESP32C3 high-performance MCU
• Semtech LR1121 transceiver
• Secondary UART connector for extended functionality
• Castled pads for easy soldering

Specification

• Article: XR2 Nano 2.4 GHz ExpressLRS Receiver
• Type: ISM2.4
• MCU: ESP32C3
• RF chip: Semtech LR1121
• Antenna: Integrated 2.4 GHz tower antenna
• Frequency range: 2.400-2.479 GHz
• Telemetry power: 10 mW
• Maximum packet rate: DK500Hz
• Minimum packet update rate: 50Hz
• Operating voltage: 5V
• Weight: 0.8 g
• Dimensions: 16 mm * 12 mm * 6 mm
• Firmware version: ExpressLRS v3.5.1 pre-installed
• FW target: RadioMaster XR2 2.4 RX
• Bus interface 1: CRSF
• Bus interface 2: UART