RadioMaster RP1 ExpressLRS 2.4GHz Nano Receiver – Overview

The RadioMaster RP1 ExpressLRS 2.4GHz Nano Receiver delivers precise and reliable control for a wide range of RC models. Its compact size and ultra-lightweight design make it easy to install without adding extra bulk, which is ideal for FPV drones, whoops, and fixed-wing aircraft.

In addition, the RP1 receiver uses ExpressLRS technology. As a result, it provides long-range communication, low latency, and a high refresh rate. Therefore, it performs well in both FPV racing and long-range flying.

The receiver features an ESP8285 MCU and an SX1280 RF chip. Moreover, it includes a U.FL antenna connector, which allows you to use a full-range external antenna for better signal performance.

Key Features

• Built on ExpressLRS open-source technology
• 2.4GHz frequency for stable and interference-resistant signal
• Long-range communication for FPV and UAV applications
• Ultra-low latency for fast and responsive control
• Compact and lightweight nano design
• Built-in WiFi for firmware updates and configuration
• WebUI support for easy setup via PC or mobile
• Fail-safe function for improved safety
• Telemetry support for real-time data monitoring
• Diversity antenna support for stronger signal reliability

Additional Features

• Improved PCB design for better heat dissipation
• Durable rigid antenna with enhanced performance
• LED indicator on the top side of the PCB
• Improved solder pads for easier installation

Specifications

• Frequency Range: 2.4GHz ISM Band
• Protocol: ExpressLRS
• MCU: ESP8285
• RF Chip: SX1280 LoRa
• Antenna Connector: IPEX (U.FL)
• Input Voltage: 5V
• Telemetry Support: Yes
• Latency: Ultra-low (up to 500Hz refresh rate)
• Range: Up to 15–30 km (depending on environment)
• Weight: 0.53 g
• Dimensions: 10 × 10 mm
• Binding Method: ExpressLRS Lua script or button
• Firmware: ExpressLRS 2.4GHz
• Antenna Type: T-shaped dipole antenna

Package Includes

• 1 × RP1 ExpressLRS 2.4GHz Nano Receiver
• 1 × 65 mm U.FL 2.4GHz T Antenna
• 1 × User Manual