YDLIDAR SDM18 TOF Laser Ranging Module 0.2-18m 50-250Hz UART/I2C for ROS1/ROS2 Robots

Yahboom

$43.39 USD

할인 품절

세금이 포함된 가격입니다. 배송료는 결제 시 계산됩니다.

Version SDM18 without case SDM18 with case

수량

전체 세부 정보 보기

Overview

YDLIDAR SDM18 Laser Ranging Module is a high-precision, single-point TOF (time-of-flight) laser ranging module designed for ROS1/ROS2 robotics and drone distance/altitude sensing applications. It features adjustable ranging frequency (50–250Hz), up to 18m measurement distance, and strong ambient light resistance up to 100KLux for indoor and outdoor use.

Key Features

TOF ranging principle; supports ROS1/ROS2
Measurement range: 0.2–18m
Adjustable ranging frequency: 50–250Hz
Strong ambient light resistance: 100KLux
Relative error: ≤30mm (0.25m ≤ ranging distance < 1m); ≤1% (1m ≤ ranging distance ≤ 18m)
UART and I2C pin reuse design (see pinout below)
Two configurations are shown: with case (screw fixation) and without case (adhesive backing); the case provides physical protection
USB-to-TTL serial communication module Type-C interface design is shown (reversible Type-C plug)
3D model files are provided (per product materials)

Specifications

Model	YDLIDAR SDM18
Ranging principle	TOF
Ranging range	0.2–18m
Ranging frequency	50–250Hz
Relative error	≤30mm (0.25m ≤ ranging distance < 1m); ≤1% (1m ≤ ranging distance ≤ 18m)
Resistant to ambient light	100KLux
Baud rate	921600bps
Laser wavelength	905
Level certification	Class I IEC60825-1
Operating voltage	3.3V
Working current	140–150mA
Operating temperature	-20 to 50°C
Storage temperature	-40 to 85°C
Size (without case)	21 × 15 × 7.87mm
Size (with case)	32.2 × 24.2 × 11.5mm
Weight (without case)	1.35g
Weight (with case)	5.4g
Interface model	WF08006
Case fixing hole	M2
ROS support	ROS1 & ROS2
Windows support	Provide Windows host computer

Interface Pinout (SDM18 interface definition)

Pin	Signal	Description
1	GND	Ground
2	UART_INT / I2C_SCL	Reuse of two modes
3	UART_RX / I2C_SDA	Reuse of two modes
4	UART_TX / I2C_INT	Reuse of two modes
5	3.3V	3.3V power supply
6	3.3V_LASER	Internal laser power supply (additional filter circuit can be added to ensure cleaner power supply)

Applications

Drone altitude/height holding and obstacle avoidance
ROS robots obstacle avoidance and navigation
Home service robots and sweeping robots navigation/obstacle avoidance
Maker education and programmable cars

For selection guidance and integration support, contact https://rcdrone.top/ or email support@rcdrone.top.

Manuals

Tutorials and reference code (Linux, ROS, STM32): http://www.yahboom.net/study/SDM18

Details

ROS robotics platforms and mobile robot kits compatible with YDLIDAR sensors for ROS projects

YDLIDAR SDM18 TOF laser ranging module in protective case, single-point distance sensor for ROS1/ROS2

SDM18 provides single-point TOF distance measurement for ROS1/ROS2 robots and drone altitude sensing.

Front view of SDM18 single-point TOF laser distance module with mounting ears, compact housing design

SDM18 configuration options comparison: with case (screw mount) vs without case (adhesive backing)

Choose a screw-fixed case for added protection, or the smaller adhesive-backed version for tight installations.

Specification comparison table for SDM18 variants and other laser ranging modules, including range and accuracy

Key parameters like 0.2–18 m range, ambient-light resistance, and accuracy are summarized for quick selection.

Both adhesive and screw-fix mounting options support clean integration on robot and smart-car chassis.

SDM18 interface definition with pinout for UART/I2C reuse, power pins, and signal mapping

UART and I2C share pins to simplify wiring while keeping a compact 6-pin connector.

YDLIDAR SDM18 performance parameters table: 50–250 Hz rate, 0.2–18 m range, 100KLux resistance

TOF ranging principle illustration showing time-of-flight distance measurement from sensor to target surface

Time-of-flight ranging calculates distance from the round-trip travel time of the laser pulse.

SDM18 distance measurement range graphic highlighting up to 18 m for indoor and outdoor sensing

Adjustable sampling frequency graphic for SDM18 showing 50–250 Hz ranging rate control

Ranging frequency can be tuned from 50–250 Hz to balance responsiveness and system load.

Anti-glare ambient light resistance graphic for SDM18 sensor, rated up to 100KLux outdoor light

Strong ambient-light resistance helps maintain stable readings in bright indoor spaces and outdoors.

Compact SDM18 installation examples on robot frame: without case adhesive mount and with case screw mount

Mechanical dimension drawings for SDM18 with case, without case, and serial communication board; 3D files noted

Mechanical drawings and 3D model files help confirm fit for enclosures, brackets, and chassis layouts.

USB-to-TTL serial communication module with reversible Type‑C connector connected to SDM18 sensor by wires

A Type‑C USB-to-TTL adapter is available for quick PC connection and serial communication testing.

Windows PC client debugging software screen for SDM18, showing distance data visualization and tool support

Windows debugging software supports setup, validation, and basic data viewing during integration.

Linux terminal output demonstrating YDLIDAR SDM18 ROS reading and SDK test results in a console window

ROS1 and ROS2 support banner with SDM18 module and laptop graphic indicating SDK compatibility

SDK support for both ROS1 and ROS2 streamlines deployment across common robotics stacks.

Screenshot of serial port raw data reading example code and UART terminal output for YDLIDAR SDM18 module

Serial-port example code and terminal output make it easier to integrate the SDM18 TOF ranging module over UART for data logging and ROS workflows.

Application scenarios graphic for YDLIDAR SDM18 ToF ranging module: drone avoidance, height, robots, smart wake-up

The YDLIDAR SDM18 ToF laser ranging module suits drone obstacle avoidance and height control, mobile robots, and smart wake-up applications.

YDLIDAR SDM18 TOF laser ranging module, compact black sensor with mounting tab and Class 1 laser safety text

The YDLIDAR SDM18 TOF ranging module uses a compact, mountable sensor body and is labeled as meeting Class 1 laser safety standards.

Screenshot of SDM18 tutorial “Gift information” with downloadable folders and MSPM0G3507 routines and docs

SDM18 tutorial resources include code, wiring diagrams, and documentation for MSPM0G3507-based routines and integration.

Comparison table for YDLIDAR SDM18 TOF laser ranging module showing 0.2–18 m range, 50–250 Hz, UART/I2C

YDLIDAR SDM18 uses TOF ranging with a 0.2–18 m measurement range, 50–250 Hz sampling, and UART/I2C connections (Type‑C).

Shipping list for YDLIDAR SDM18 module with or without case, serial communication board, connecting cable, and USB Type‑C cable

The package includes an SDM18 module (with or without case), a serial communication module, an 8 cm connecting cable, and a 1 m USB Type‑C data cable.