Product overview
The RadioMaster NEXUS-X is a flight controller built around RF 2.2, combining an STM32F722RET6 processor with an ICM42688P six-axis motion sensor for control and stabilization. Its CNC-machined aluminum enclosure protects the electronics and also acts as a heat sink. Measuring 44.70 x 26.50 x 12.30mm and weighing 20.6g, the controller provides a compact integration package. Onboard equipment includes an SPL06-001 barometer and 256MB of black box flash memory for recording sessions and supporting tuning. RF Rescue is a standard feature.
Integration connections include five UARTs, S1/S2/S3 and tail servo connections rated for servos up to 12V, one ESC frequency sensor input and one AUX connection. The DC supply range is 5–16V, while external voltage telemetry accepts 3.6–70V; A-B-C serial port power output is 5V–1.5A. The supplied controller package includes connection cables, USB-C extensions, mounting tape and heat shrink tubing. An RP3-H ExpressLRS receiver connects through a solder-free locking connector but is sold separately. The included DSM cable supports telemetry only and does not support DSM receivers.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | RadioMaster NEXUS-X Flight Controller |
| Precision control hardware | STM32F722 MCU and ICM42688P 6-axis motion sensor/accelerometer |
| Data logging | 256MB onboard flash memory for logging and tuning |
| Plug-and-play receiver connection | Solder-free locking connector for RP3-H ExpressLRS receiversRP3-H ExpressLRS receiver sold separately. |
| External input range | 3.6V–70VExternal input; telemetry input is separately. |
| Firmware | RF 2.2 |
| MCU | STM32F722RET6 |
| Black box flash memory | 256MB (W25N02KVZEIR) |
| Barometer | SPL06-001 |
| UART interfaces | 5 — S.BUS[UART1], TELEM[UART2], PORT-A[UART4], PORT-B[UART6], PORT-C[UART3] |
| Servo connections | S1, S2, S3, TAILServos up to 12V. |
| RPM sensor input | 1From ESC frequency sensor. |
| AUX | 1 |
| External voltage telemetry range | 3.6-70vExternal voltage telemetry input. |
| Supply voltage | 5 - 16VDC supply. |
| Serial port power output | 5V - 1.5AA-B-C serial ports. |
| Dimensions | 44.70 x 26.50 x 12.30mm |
| Weight | 20.6g |
| Receiver support | CRSF, ELRS, GHOST, S.BUS, SUMD, IBUS, XBUS, EXBUS, PPM, MSP |
| Telemetry support | S.BUS, HoTT, S.Port, MSP, EDGETX, ELRS |
| Enclosure | CNC-machined aluminum case serving as a heat sink |
| Additional control connections | Additional PWM pins |
| BEC | Improved BEC for electronics power delivery |
| Rescue function | RF RescueStandard feature. |
| Case color options | Grey / Gold / Red / Blue / Purple |
| Controller and connection accessories | 1 × NEXUS-X Flight Controller; 3 × JST-GH 4-wire pigtail cables; 1 × JST-GH to servo plug with Dupont 3-pin connector; 1 × ultra-lightweight flexible USB-C extender; 1 × Type C extension cableIncluded equipment. |
| Telemetry cables | 1 × JST-ZH1.5 DSM telemetry cable; 1 × voltage telemetry wireIncluded DSM telemetry cable supports telemetry only and does not support DSM receivers. |
| Mounting and finishing accessories | 3 × 3M double-sided mounting tape; 2 × heat shrink tubing; 1 × inventory cardIncluded equipment. |
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