NEXUS-XR Flight Controller With 2.4GHz ExpressLRS Receiver For RC Helicopters

Description:

The Nexus-XR revolutionizes 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.

Specifications:

• 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

Features:

• Dual Semtech SX1281 2.4GHz transceivers for seamless RF performance, eliminating the need for an external receiver.
• STM32F722 MCU and ICM42688P 6-axis gyroscope/accelerometer for superior flight dynamics.
• Two 65mm wire antennae for superior signal strength and range.
• Additional pins for expanded control in complex setups.
• Compatible with 760μs/1520μs tail servos and ESCs.
• Supports 3.6V–70V external power input for flexible setups.
• Dedicated 1.8V (gyro), 3.3V (MCU), and 5V (interfaces) to minimize noise.
• Ideal for any helicopter builds.
• Engineered for peak performance and compatibility.
• 256MB onboard flash memory for detailed logging and tuning.
• Multiple UART ports support CRSF, ELRS, S.BUS, and more.
• Sleek, rugged design doubles as a heat sink to keep the system cool.
• Capable of supporting 12-volt servos.
• Stable, reliable power delivery to electronics for enhanced performance.
• Lightweight, flexible USB-C extender cable for easy access in tight builds.
• Standard feature for enhanced safety in emergencies.
• Grey / Gold / Red / Blue / Purple. 

Overview:

User Manual:

• NEXUS-XR User Manual

Package 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-lightweight 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