The XR2 Receiver is a tiny yet powerful device designed for 2.4GHz ExpressLRS. Its integrated tower antenna provides excellent reception in an ultra - compact design. Measuring just 16x12mm and weighing only 0.8g, it's perfect for space - limited builds. Powered by the advanced Semtech LR1121 transceiver (third generation), it's compatible with all ELRS 2.4GHz transmitters and supports DK500Hz mode for LR1121 - based systems, ensuring top - notch reliability and responsiveness. The built - in Wi - Fi module makes firmware updates and configuration a breeze via a WebUI on your PC or mobile. With ultra - low latency and high refresh rates, it excels in Whoops, micro drones, and fixed - wing models. Key features include an integrated 2.4GHz tower antenna, ExpressLRS 2.4GHz, ESP32C3 high - performance MCU, Semtech LR1121 Transceiver, a secondary UART port, and castled pads for easy soldering. Specifications cover a frequency range of 2.400 - 2.479GHz, 10mW telemetry power, and more. The package includes 1x XR2 Nano 2.4GHz ExpressLRS Receiver, 1x CRSF Wire, 3x Heat - Shrinkable Tube, and 1x Manual Card.
Using the RadioMaster XR2 Nano 2.0GHz ExpressLRS Receiver is easy. First, connect it to your device using the CRSF wire. Make sure to handle it gently as it's very light and small. When soldering, the castled pads make the process straightforward. For firmware updates, use the built - in Wi - Fi module. Just access the WebUI on your PC or mobile device. When using it in Whoops, micro drones, or fixed - wing models, enjoy the ultra - low latency and high refresh rates. As for maintenance, keep it in a dry place. Avoid exposing it to extreme temperatures. Check the connections regularly to ensure reliable performance. And if you want to take advantage of the DK500Hz mode, make sure your system is LR1121 - based.
