SKU: DRFC-3302
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RadioMaster RP1 ExpressLRS Nano Receiver

₹2,500.00 (Inclusive of all taxes)
Out of Stock

The RadioMaster RP1 is a compact, high-performance 2.4GHz ExpressLRS Nano Receiver designed for ultra-low latency FPV racing and long-range applications. Featuring a built-in TCXO for frequency stability and WiFi for easy firmware updates via WebUI.

Features

  • ExpressLRS 2.4GHz open-source protocol for ultra-low latency and long-range performance.
  • Built-in TCXO ensures stable signal frequency and accuracy in all flight conditions.
  • Integrated WiFi and WebUI for simple, wireless firmware updates and configuration.
  • Compact footprint (13x11x3 mm) and ultra-lightweight (2.2g) for micro builds and racing drones.
  • Supports refresh rates from 25Hz to 500Hz via CRSF bus interface for maximum responsiveness.

Out of stock

Description

The RadioMaster RP1 Nano Receiver leverages the ESP8285 MCU and Semtech SX1281 RF chip to deliver the high-speed, low-latency communication demanded by modern FPV racing and long-range pilots. Its design prioritizes signal integrity and stability, with a temperature-compensated crystal oscillator (TCXO) maintaining precise frequency control across varying environmental conditions.

With a built-in WiFi module, the receiver provides a seamless setup and maintenance experience, allowing pilots to access its WebUI for configuration and firmware flashing without the need for physical data cables. The included 65mm U.FL T-style antenna offers a flexible and robust RF link, optimized for the 2.4GHz band. Its minimal weight and size make it an ideal choice for weight-sensitive micro drones and compact builds where every gram counts.

Key Features

  • ExpressLRS v2.4 firmware delivers industry-leading packet rate and range performance.
  • Semtech SX1281 LoRa-based RF chip provides robust signal penetration and interference resistance.
  • CRSF (Crossfire Serial Receiver Protocol) bus interface ensures compatibility with modern flight controllers.
  • Ultra-compact PCB design (13x11x3 mm) allows installation in the tightest of spaces.
  • Web-based configuration portal eliminates the need for dedicated flashing tools or cables.
  • Wide operating voltage range compatible with typical 1S-2S LiPo direct power or regulated 5V BEC.

Applications

  • Ultra-lightweight 3-inch and smaller micro FPV racing drones.
  • Long-range fixed-wing aircraft and wings requiring a compact, high-performance receiver.
  • 5-inch and 7-inch FPV freestyle and racing quads where minimal weight and low latency are critical.
  • DIY robotics and rover projects utilizing CRSF protocol for telemetry and control.
  • Backup or secondary receiver installations in larger UAVs for redundancy.

Technical Specifications

Item TypeReceiver
ProtocolExpressLRS 2.4GHz
Frequency Range2.404 – 2.479 GHz
Main Control Unit (MCU)ESP8285
RF ChipSemtech SX1281
Antenna Type65mm U.FL T-style
InterfaceCRSF
FirmwareExpressLRS v2.4
Dimensions (LxWxH)13 x 11 x 3 mm
Weight (with antenna)2.2 g
Refresh Rate25Hz to 500Hz
Key FeatureBuilt-in TCXO & WiFi

Frequently Asked Questions

What is the operating voltage range for the RadioMaster RP1 receiver?

The RP1 receiver is designed to be powered directly from a 1S or 2S LiPo battery, typically accepting a wide input voltage range from 3.2V to 10V. It can also be powered from a regulated 5V BEC output from your flight controller or ESC. Always check the specific voltage limits in the official documentation before connecting.

How do I update the firmware on the RP1 receiver?

Firmware updates are performed wirelessly via the receiver's built-in WiFi. Power on the receiver, connect to its broadcasted WiFi network from a computer or smartphone, and access its WebUI in a browser. From there, you can flash the latest ExpressLRS firmware directly. No USB data cable or external flashing tools are required.

What flight controllers is the RP1 receiver compatible with?

The RP1 uses the CRSF (Crossfire Serial Receiver Protocol) serial interface, making it directly compatible with virtually all modern flight controllers that support ExpressLRS via a UART port, including those running Betaflight, EmuFlight, and ArduPilot. Simply connect the receiver's signal wire to a free UART TX pad and configure the corresponding port in your firmware.

Can I use a different antenna with the RP1's U.FL connector?

Yes, the RP1 features a standard U.FL (IPEX) connector, allowing you to swap the included 65mm T-antenna for other 2.4GHz antennas like a monopole or a more directional patch antenna for specialized long-range applications. Ensure any replacement antenna is rated for the 2.4GHz band and has a matching U.FL connector.

Package Includes

  • 1 x RP1 ExpressLRS 2.4GHz Nano Receiver
  • 1 x 65mm U.FL 2.4GHz T Antenna
  • 1 x Accessory (Mounting Tape)
  • 1 x User Manual

Additional Information

Weight 0.0022 kg
Dimensions 1.3 × 1.1 × 0.3 cm