RUS-04 Ultrasonic Distance Sensor Module with RGB LED – 2cm to 4m

The RUS-04 Ultrasonic Distance Sensor Module is a compact distance measurement sensor designed for robotics, obstacle detection, and electronic automation projects. It uses ultrasonic technology to measure the distance between the sensor and an object without physical contact.

Featuring an integrated RGB LED indicator, the RUS-04 combines distance sensing and visual indication in a single module.

With an operating voltage of 3.5V–5.5V and a detection range of 2cm to 4m, this sensor is suitable for Arduino, ESP32, and other compatible microcontroller projects.

Key Features

• Ultrasonic Distance Measurement: Detects objects without physical contact.
• 2cm to 4m Detection Range: Suitable for short- and medium-range distance sensing.
• Integrated RGB LED: Provides visual indication for interactive projects.
• 40kHz Ultrasonic Frequency: Uses ultrasonic waves for distance measurement.
• Wide Operating Voltage: Supports 3.5V–5.5V DC.
• Compact PCB Design: Easy to integrate into robotics and embedded systems.
• Microcontroller Integration: Suitable for Arduino and other compatible development boards.

Technical Specifications

Connection and Compatibility

The RUS-04 can be integrated into microcontroller-based distance measurement systems.

Compatible development platforms may include:

• Arduino Uno, Nano, and Mega
• ESP32 development boards
• ESP8266 development boards
• Other compatible microcontrollers

Important: Check the module's pinout and signal voltage levels before connecting it to a microcontroller. Level shifting may be required when interfacing with 3.3V GPIO devices.

Applications

• Robot Obstacle Detection
• Smart Car Navigation
• Distance Measurement Projects
• Object Proximity Detection
• Interactive RGB Lighting Projects
• Educational Robotics
• DIY Automation Systems
• Embedded Electronics Prototyping

Important Notes

• The sensor measures distance using ultrasonic sound waves.
• Measurement accuracy can vary depending on object material, surface angle, and environmental conditions.
• Soft or irregular surfaces may reduce ultrasonic reflection.
• The RGB LED control method depends on the module's interface implementation.
• Verify the pin configuration before connecting power or GPIO signals.
• The stated measurement accuracy and operating temperature should be confirmed against the manufacturer's documentation for critical applications.

Package Includes

• 1 × RUS-04 Ultrasonic Distance Sensor Module with RGB LED