RadioMaster RP1 V2 2.4GHz ELRS Nano Receiver – ExpressLRS Compatible

Meet the RadioMaster RP1 V2 Nano Receiver

The RP1 V2 is a compact, featherweight 2.4GHz ExpressLRS receiver designed for FPV drones and small aircraft. At just 13 mm by 11 mm and around 2.2 g (including the 65 mm antenna), it slips into tight airframes while delivering a dependable link. Built for real-world flying, it pairs streamlined hardware with practical features that matter in the air.

Stable, flexible performance

A built-in TCXO (temperature-compensated crystal oscillator) helps keep signal reception steady across temperature shifts and flight conditions. Combined with a high-refresh RF module, the RP1 aims to provide smooth, responsive control, which can be especially noticeable during quick maneuvers or long sessions where reliability matters.

• Stable signal with temperature compensation for consistent control.
• Open‑source ELRS compatibility that works with both RP1 and other ELRS modules.
• Lightweight, nano form factor suitable for a wide range of airframes.

Core specifications you can rely on

• 2.4 GHz operation with a frequency range of 2.404–2.479 GHz.
• Maximum receive refresh rate up to 500 Hz (with up to 1000 Hz in some configurations) and a minimum of 25 Hz.
• Telemetry output at 10 mW for practical range testing and feedback.
• 65 mm UFL antenna socket for flexible antenna choices and full-range setups.
• 15–20 mW class performance in a tiny, robust package designed for FPV racing and experimentation.

One device, many advantages

The RP1 is designed for straightforward integration with all 2.4 GHz ExpressLRS modules and transmitters that feature built‑in ExpressLRS. It uses an ESP8285 MCU and SEMTECH SX1281 RF chip, combining open‑source accessibility with proven RF capability. A built‑in Wi‑Fi interface lets you upgrade firmware and configure the Receiver via WebUI from a computer or mobile device, eliminating the need for extra tools.

• Open‑source, flexible hardware for diverse setups.
• USB-free firmware upgrades via Wi‑Fi and WebUI for quick tuning.
• Durable construction with improved solder pads for easier assembly and field maintenance.

What’s in the package

• 1 × RP1 ExpressLRS 2.4GHz Nano Receiver
• 1 × User Manual
• 1 × 65 mm UFL 2.4GHz Antenna
• 1 × CRSF wire

Whether you’re sprinting through an FPV course, testing a lightweight quad, or exploring longer-range experimentation, the RP1 V2 aims to balance compact design with dependable performance. It offers a practical upgrade path for pilots who value ease of use, upgradeability, and a compact footprint without sacrificing link quality.