RadioLink SUI04 Ultrasonic Sensor for Multirotor Overall Obstacle Avoidance Suitable for Pixhawk, Mini PIX

The RadioLink SUI04 is an advanced ultrasonic sensor specifically engineered for comprehensive obstacle avoidance in multirotor drone systems. With its integrated transceiver design, compact structure, and powerful processing capabilities, it offers precise, real-time environmental awareness to ensure safe and reliable drone operation.

---

Overview

• Model: SUI04

• Function: Ultrasonic sensor for 6-direction overall obstacle avoidance

• Application: Compatible with multirotors using flight controllers such as CrossFlight, CrossRace, PIXHAWK, Mini Pix, and TURBO PiX.

• Technology: Hardware & software dual filtering with 32-bit processor

• Response Time: 30ms ultra-fast response

• Precision: 0.4cm detecting accuracy

• Beam Angle: 60° sensing angle with zero fade zone

• Size: 20 × 22 × 19mm | Weight: 8g

---

Key Features

30ms Extremely Fast Response

With an integrated 32-bit processor and dual filtering (hardware + software), the SUI04 provides extremely fast and accurate detection (30ms response), solving the delay problems common to many other ultrasonic modules. It’s ideal for use in precision applications such as agricultural drones and beginner drone training, helping avoid obstacles in real time.

Compatible flight controllers: RadioLink CrossFlight, CrossRace, PIXHAWK, Mini Pix, TURBO PiX (requires Copter V3.5.7 firmware upgrade).

60° Beam Angle, Zero Fade Area

Each SUI04 sensor transmits and receives within a 60° cone, enabling complete coverage with no blind spots. Used in conjunction with six units and an I2C expansion board, it allows real-time, all-directional detection (forward, backward, left, right, upward, downward).

High Precision of 0.4cm

The SUI04 boasts a detection accuracy of 0.4cm, ensuring that even small and near-range obstacles are detected with high reliability, supporting safer and smoother flight.

Compact & Lightweight Design

Measuring only 20×22×19mm and weighing just 8g (with wires), the SUI04 is optimized for drones with limited payload capacity. The all-in-one transmitter-receiver module makes installation on small airframes easy—even for 210mm-class FPV racers.

---

Specifications

---

Connection and Integration

The SUI04 can be connected to the Mini Pix or other supported controllers via an I2C expansion board. This enables 6-directional obstacle avoidance and supports precise altitude holding in real-time.

---

Training & Outdoor Safety

Designed with education and training in mind, the SUI04 allows beginners to avoid hitting the ground or ceiling while adjusting throttle. This makes it ideal for flight instruction environments, enhancing safety for both users and teaching gear.

---

Package Contents

• SUI04 Sensor x1

• I2C Wire for PIXHAWK x1

• I2C Wire for CrossFlight/CrossRace/Mini Pix x1

• Packing Bag x1

Details

Ultrasonic Sensor SUI04 for obstacle avoidance on multirotors. Offers dual filters, 0.4cm precision, 30ms response, 60° beam angle, no fade area.

RadioLink SUI04 ultrasonic sensor ensures 30ms fast response with 32-bit processor and dual filters. Compatible with various flight controllers, it aids real-time obstacle detection and height protection for drones.

60° beam angle ensures real-time environment detection and obstacle sensing. Connect SUI04 with RadioLink flight controllers for 6-direction synchronous avoidance, guaranteeing safer flights.

High Precision of 0.4cm; SUI04 detects barriers quickly with zero fade area.

RadioLink SUI04 Ultrasonic Sensor has a compact 20x22x19mm design, weighing just 8g. Combining transmission and reception in one unit, it’s ideal for small devices like the Lumenier QAV210. The green circuit board includes a USB interface and essential electronics. Labeled "SUI04 v2.0 RadioLink," it offers easy setup and dependable performance, delivering accurate distance measurements in tight spaces.

Safety Guaranteed for Outdoors Operation and Training. SUI04 ensures collision avoidance, protecting players and devices during training.

Mini Pix Connection diagram. RadioLink SUI04 Ultrasonic Sensors for obstacle avoidance (backward, forward, left, right, upward, downward) connect via I2C Expansion Board to Mini Pix V1.1 flight controller.

SUI04 Package List: SUI04 x1, Wire for PIXHAWK(I2C) x1, Wire for CrossRace&CrossFlight/Mini Pix(I2C)/I2C Transfer Board x1, Packing bag x1.

RadioLink SUI04 Ultrasonic Sensor: 20x22x19mm, 8g, 4.5-5.5V, 18mA@5V, 90mW, -30~85°C, 40-450cm range, 0.4cm precision, 40±1.0KHz, 60° angle, I2C output, 30ms cycle, multirotor compatibility, 6-direction obstacle avoidance.