Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Measurement Range	0.03m to 18m
Sampling Frequency	Up to 5000 Hz
Interface Protocol	UART / TTL Serial
Operating Voltage	3.3V - 5.0V DC
Field of View	360 Degrees
Rotation Speed	Adjustable 2-10 Hz
Compatibility	ROS, ROS2, Arduino, Raspberry Pi
Laser Class	Class 1 (Eye Safe)
Dimensions	42mm x 42mm x 28mm
Weight	65g

6 reviews

Anonymous

Mar 24, 2026

Rating: 4/5

Great value, minor documentation gaps

Hardware quality is excellent and the build feels solid. The serial communication is fast. I deducted one star because the ROS2 driver setup required some trial and error not covered in the manual.

Anonymous

Mar 21, 2026

Rating: 5/5

Reliable TOF sensor

Been running this for 48 hours straight in a mapping application without a single dropout. The accuracy at close range is impressive compared to other sensors in this price bracket.

Anonymous

Mar 18, 2026

Rating: 5/5

Perfect for my autonomous rover project

The integration with ROS2 was seamless. The point cloud data is stable and the 18m range is more than enough for indoor navigation. Highly recommended for hobbyists and prototyping.

Anonymous

Mar 09, 2026

Rating: 5/5

Compact and lightweight

The small form factor made it easy to mount on my custom drone frame. Power consumption is low, which is critical for battery-operated projects. Works flawlessly with Python scripts.

Anonymous

Mar 06, 2026

Rating: 5/5

Exceeded expectations

I was skeptical about the 18m claim in bright sunlight, but it performed surprisingly well outdoors. The noise filtering algorithms in the firmware seem very effective.

Anonymous

Mar 02, 2026

Rating: 4/5

Good for educational purposes

We bought five units for our robotics course. Students found them easy to interface with. One unit had a slightly wobbly motor housing, but it didn't affect performance.

5 FAQ

Q: What is the operating temperature range for outdoor use?

A: The SDM18 is rated for operation between -10°C and 50°C. For extreme outdoor conditions, we recommend adding a simple weatherproof housing.

Q: Is there a pre-built Docker container available for ROS2 Humble?

A: Absolutely. You can find the official Docker image link and usage instructions in the 'Software Resources' section of our product wiki page.

Q: Does this sensor come with a USB-to-TTL converter cable?

A: Yes, the package includes a standard USB-to-TTL serial cable for easy connection to your PC for testing and configuration.

Q: Does it support dynamic obstacle detection?

A: Yes, the high sampling frequency allows the sensor to detect moving objects effectively. However, processing logic for dynamic tracking must be implemented in your host application or ROS node.

Q: Can the rotation speed be fixed at exactly 5Hz?

A: Yes, the rotation speed is fully adjustable via serial commands. You can set it to any integer value between 2Hz and 10Hz, including 5Hz.

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