SKU: DRFC-3314
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RadioMaster RP1 V2 ExpressLRS Nano Receiver

₹2,639.00 (Inclusive of all taxes)
Out of Stock

The RadioMaster RP1 V2 is a compact 2.4GHz ExpressLRS Nano Receiver designed for low-latency, long-range control in FPV drones and RC models, featuring a CRSF interface and compatibility with all 2.4GHz ExpressLRS transmitters.

Features

  • Ultra-compact 13x11x3mm footprint weighing only 2.2g for space-constrained builds.
  • ExpressLRS 2.4GHz protocol delivers up to 500Hz / F1000Hz refresh rates for ultra-low latency control.
  • Features a built-in TCXO (Temperature Compensated Crystal Oscillator) for superior frequency stability.
  • Operates on 5V power with a CRSF serial interface for seamless Betaflight and ArduPilot integration.
  • Includes a durable 65mm UFL 2.4GHz T antenna for optimized RF performance.

Out of stock

Description

The RadioMaster RP1 V2 Nano Receiver leverages the SEMTECH SX1281 RF chip and an ESP8285 MCU to provide robust 2.4GHz ExpressLRS connectivity. Its upgraded PCB design enhances thermal management and solder pad accessibility, while the rigid T-antenna improves durability and signal reception. This receiver is pre-loaded with ExpressLRS v2.4 firmware, ready for binding and configuration via the ExpressLRS Configurator.

Engineered for reliability, the RP1 V2 supports a wide refresh rate range from 25Hz to 500Hz (Full Duplex 1000Hz), allowing pilots to balance range and responsiveness. Its 10mW telemetry output ensures two-way communication is maintained, providing critical flight data back to the transmitter. The integrated status LED simplifies setup and troubleshooting during installation.

Key Features

  • Advanced RF Core: Utilizes the SEMTECH SX1281 chipset for efficient 2.4GHz LoRa modulation, offering extended range and interference resistance.
  • Precision Timing: Built-in Temperature Compensated Crystal Oscillator (TCXO) maintains accurate frequency control across varying temperature conditions.
  • Robust Antenna Design: Upgraded rigid 65mm UFL T antenna provides improved mechanical strength and consistent radiation pattern.
  • Optimized Thermal Design: Revised PCB layout with enhanced copper pours for better heat dissipation during prolonged operation.
  • User-Friendly Interface: Clearly labeled and enlarged solder pads for simplified wiring of power, ground, and CRSF signal lines.
  • Comprehensive Protocol Support: Fully compatible with all 2.4GHz ExpressLRS external modules and transmitters with internal ELRS.

Applications

  • Ultra-lightweight 1S to 2S TinyWhoop and micro FPV drone builds requiring minimal weight.
  • 3-inch and 5-inch long-range FPV cruisers where reliable ExpressLRS telemetry and control are critical.
  • FPV racing drones where the 500Hz refresh rate provides the lowest possible control latency.
  • Compact RC plane and rover projects needing a small, high-performance 2.4GHz receiver.
  • Backup or diversity receiver setups in complex multirotor or fixed-wing aircraft.

Technical Specifications

Item TypeReceiver
Frequency2.4 GHz
RF ChipSEMTECH SX1281
MCUESP8285
ProtocolExpressLRS
Refresh Rate500Hz / F1000Hz (Max), 25Hz (Min)
Telemetry RF Power10mW
Operating Voltage5V
InterfaceCRSF
FirmwareExpressLRS v2.4 (Pre-installed)
Antenna65mm UFL 2.4GHz T Antenna
Dimensions (L x W x H)13 mm x 11 mm x 3 mm
Weight (with antenna)2.2 g

Frequently Asked Questions

What is the operating voltage range for the RadioMaster RP1 V2 receiver?

The RP1 V2 is designed to operate at a stable 5V input. It is critical to provide clean 5V power, typically sourced from a regulated BEC on your flight controller or a dedicated 5V regulator. Exceeding this voltage can damage the receiver's internal components.

How do I bind and configure the RP1 V2 with my ExpressLRS transmitter?

Ensure your transmitter's ExpressLRS module is updated to a compatible version (v2.x or v3.x). Power the receiver and put it into binding mode via the ExpressLRS Lua script or WiFi-based Web Flasher. Once bound, use the ExpressLRS Configurator to set parameters like packet rate, telemetry ratio, and model match according to your flight needs.

Can I use a different antenna with this receiver?

Yes, the RP1 V2 uses a UFL/IPEX connector, allowing you to replace the included 65mm T antenna with other UFL-compatible 2.4GHz antennas. Ensure any replacement antenna is tuned for the 2.4GHz ISM band. Using an antenna with improper impedance or gain can significantly reduce range and performance.

What does the '500Hz / F1000Hz' refresh rate specification mean?

This indicates the receiver can operate at a maximum refresh rate of 500Hz in standard mode, meaning it updates control data 500 times per second. In Full Duplex (F1000Hz) mode, it can achieve an effective 1000Hz update rate by leveraging bidirectional communication, providing the lowest possible latency for competitive FPV racing.

Package Includes

  • 1 x RP1 V2 ExpressLRS 2.4GHz Nano Receiver
  • 1 x 65mm UFL 2.4GHz T Antenna
  • 1 x CRSF Wiring Harness
  • 1 x User Manual

Additional Information

Weight 0.0022 kg
Dimensions 1.3 × 1.1 × 0.3 cm