RadioMaster NEXUS-XR Helicopter Flight Controller Integrated 2.4GHz ExpressLRS Receiver

Description

The Nexus-XR revolutionises helicopter flight controllers by integrating a cutting-edge ExpressLRS receiver with dual Semtech SX1281 2.4GHz transceivers. This built-in receiver delivers exceptional RF performance, superior range, reliability, and effortless setup. It eliminates the need for external receivers, simplifying installation and reducing weight.

At the core of the Nexus-XR is the powerful STM32F722 MCU, paired with the ICM42688P 6-axis MEMS motion-tracking device. This device provides excellent vibration resistance and enhanced signal rejection, making it ideal for electric and nitro helicopters.

The Nexus-XR features several key upgrades. An improved BEC delivers more stable power to electronics, enhancing reliability, while the external voltage input now supports a range of 3.6V to 70V. Memory has been upgraded to 256MB, enabling longer flight logs. The CNC-machined aluminum case is sleeker yet still serves as a protective shield and heat sink, keeping the system cool during intense flights.

Designed for ultimate convenience, the Nexus-XR’s compact, rugged build fits a wide range of helicopter sizes, and delivers top performance in demanding conditions.

Features

Integrated ExpressLRS Receiver: Dual Semtech SX1281 2.4GHz transceivers for seamless RF performance, eliminating the need for an external receiver.
Optimized for Rotorflight 2.2: Engineered for peak performance and compatibility.
Precision Control: STM32F722 MCU and ICM42688P 6-axis gyroscope/accelerometer for superior flight dynamics.
Flight Logging: 256MB onboard flash memory for detailed logging and tuning.
Dual Antenna Design: Two 65mm wire antennae for superior signal strength and range.
Versatile Connectivity: Multiple UART ports support CRSF, ELRS, S.BUS, and more.
More PWM Pins: Additional pins for expanded control in complex setups.
CNC-Machined Aluminum Case: Sleek, rugged design doubles as a heat sink to keep the system cool.
Tail Servo/ESC Support: Compatible with 760μs/1520μs tail servos and ESCs.
12V Servo Support: Capable of supporting 12-volt servos.
Wide Voltage Range: Supports 3.6V–70V external power input for flexible setups.
Improved BEC: Stable, reliable power delivery to electronics for enhanced performance.
Isolated Power Supplies: Dedicated 1.8V (gyro), 3.3V (MCU), and 5V (interfaces) to minimize noise.
USB-C Accessibility: Lightweight, flexible USB-C extender cable for easy access in tight builds.
Compact and Lightweight: Ideal for any helicopter builds.
Rotorflight Rescue: Standard feature for enhanced safety in emergencies.
Optional Case Color: Grey / Gold / Red / Blue / Purple.

Related Products

Specification

Item: Nexus-XR Helicopter Flight Controller
Firmware: Rotorflight 2.2
MCU: STM32F722RET6
Gyro (IMU): ICM42688P
Flash Memory (Black Box. IC): 256MB (W25N02KVZEIR)
Barometer: SPL06-001
Uart: 5 – S.BUS[UART1], TELEM[UART2], PORT-A[UART4], PORT-B[UART6], PORT-C[UART3]
Servo: S1, S2, S3, TAIL Servos (Up to 12V )
Rpm Sensor: 1 – FROM ESC FREQUENCY SENSOR
AUX: 1
Ext voltage input (tele): 3.6-70v
Receiver Support: CRSF, ELRS, GHOST, S.BUS, SUMD, IBUS, XBUS, EXBUS, PPM, MSP
Voltage Supply(DC): 5 – 16V
A-B-C Serial Port Power Output: 5V – 1.5A
Telemetry: S.BUS, HoTT, S.Port, MSP, EDGETX, ELRS
ESC: PWM, Oneshot, Multishot, Dshot
Support Tail ESC: 760μs / 1520μs Servo
Support Tail Motor: Yes
Internal Receiver: RP4TD-M ExpressLRS 2.4GHz Mini True Diversity Receiver
MCU: ESP32
Type: ISM
RF Chip: SX1281 x 2
Antenna: 65mm 2.4GHz Wire Antenna x 2
Frequency Range: 2.4GHz
Maximum Refresh Rate: 500Hz / F1000Hz
Telemetry RF Power: Max 2 x 10mW
Wifi Updates: Yes
FW Target: RadioMaster RP4TD-M 2400 RX
Bus interface: CRSF
Demensions: 44.70 x 26.50 x 14.30mm
Weight: 24.1g

Included:

1 x NEXUS-XR Helicopter Flight Controller
3 x JST-GH 4 Wire pigtail cables
1 x JST-GH to Servo Plug (dupont 3 pin connector)
1 x Ultra light-weight and flexible USB-C extender
1 x Type C extension cable
1 x JST-ZH1.5 “DSM” Telemetry cable (Telemetry only does not support DSM Receivers)
1 x Voltage telemetry wire
3 x 3M double-sided mounting tape
2 x Heat shrink tubing
1 x Inventory Card

Downloads

Manual (pdf, 678KB)

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