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ELRS Receivers Series

Communication & Data Links
by Holybro

Description

The ELRS Receivers Series are open-source 2.4GHz ExpressLRS receivers designed for FPV racing and long-range applications. Featuring ESP8285 MCU and SX1280 RF chip, these nano-sized receivers offer low-latency, high-refresh-rate performance with WiFi connectivity for firmware updates and configuration. The RP1 has a UFL antenna socket for full-range use, while the RP2 includes a built-in ceramic antenna for ultra-light applications.

About the Company

Holybro

Holybro is a manufacturer of drone components and systems, specializing in flight controllers, GPS modules, FPV products, and drone development kits for unmanned aerial vehicles.

Core Information

Serving industries
Air
Release/Launch year
2023
Model number / Variant
RP1/RP2/RP3
Product status
In Production
Name
ELRS Receivers Series

Product Classification

Link roles
Command & Control (C2) Telemetry
System type
RF Radio Transceiver
Supported platform classes
sUAS
Operating environment
Airborne
Link topology
Point-to-Point
LOS/BLOS capability
LOS
Duplexing modes
Half-Duplex

Frequency & Spectrum

Frequency bands
2.4 GHz ISM
Regional spectrum compliance
FCC (US) CE/ETSI (EU)
Maximum TX power (dBm)
100
Frequency agility/hopping
Spectrum licensing
Unlicensed/ISM

Data & Performance

Range conditions
Line-of-sight conditions
Modulation/Coding
LoRa FLRC

Interfaces & Protocols

Physical interfaces
Serial UART
Control/Telemetry protocols
MAVLink
Antenna connectors
U.FL
Number of antenna ports
1

Security

Anti‑jam/Resilience features
FHSS
Export control classification
EAR99
Authentication methods
Pre-Shared Key (PSK)
Key management
Pre-Shared

Power & Physical

Power options
DC
Mounting options
Airframe/Internal
Included antenna types
Omnidirectional
Weight (g)
50

Software & Management

Configuration methods
Web UI
Telemetry/Integration
MAVLink
OTA firmware updates

Compatibility & Integration

Autopilot compatibility
ArduPilot PX4
GCS compatibility
QGroundControl Mission Planner
Integration notes
Open-source ExpressLRS firmware, WiFi connectivity for updates and configuration, bind phrase binding system

Certifications & Compliance

Certifications/Marks
FCC CE RoHS
Spectrum approval regions
US EU