SKU: SENS-1470
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YDLIDAR SDM18 Outdoor 15M Single Point Ranging Laser Sensor - USB Type-C

₹2,399.00 (Inclusive of all taxes)
Out of Stock

The YDLIDAR SDM18 is a compact, single-point laser ranging sensor designed for outdoor applications, offering a 0.2-18m measurement range with a configurable 50-250Hz update rate. Operating at 3.3V, it provides a precise UART distance output ideal for integration with microcontrollers like Arduino, Raspberry Pi, and ESP32 for obstacle avoidance and positioning systems.

Features

  • Single-point laser ranging with 0.2-18m outdoor measurement capability.
  • Configurable update rate from 50Hz to 250Hz for flexible system integration.
  • Compact 21x15x7.87mm form factor for space-constrained installations.
  • 3.3V DC operation with 140-150mA current draw for low-power embedded designs.
  • UART serial interface for direct communication with microcontrollers and SBCs.

Out of stock

Description

The YDLIDAR SDM18 utilizes a precise laser time-of-flight (ToF) principle for single-point distance measurement. Its optical system and signal processing are engineered for outdoor reliability, maintaining accuracy across varying ambient light conditions. The sensor outputs calibrated distance data via a standard UART serial interface, compatible with common 3.3V logic systems.

Designed for continuous operation in embedded applications, the SDM18 features a robust housing suitable for outdoor environments. Its low-power design and configurable measurement frequency allow for optimization based on application requirements, from rapid robotic navigation to steady-state monitoring systems.

Key Features

  • High-precision single-point laser ranging for outdoor environments.
  • Wide, configurable measurement frequency from 50Hz to 250Hz.
  • Compact and durable housing designed for system integration.
  • Low-voltage 3.3V DC operation compatible with modern microcontrollers.
  • UART serial communication for straightforward data acquisition.
  • Optimized optical design for reliable performance in variable outdoor lighting.

Applications

  • Outdoor robotics and AGV (Automated Guided Vehicle) obstacle avoidance systems.
  • Precision positioning and level measurement in industrial outdoor settings.
  • Distance-triggering for automated gates, barriers, and security systems.
  • Navigation and proximity sensing for unmanned aerial and ground vehicles.
  • Integration into custom environmental monitoring and surveying equipment.

Technical Specifications

Manufacturer Part NumberSDM18
Measurement Range0.2 to 18 meters
Update Frequency50 - 250 Hz
Operating Voltage3.3V DC
Operating Current140 - 150 mA
Output InterfaceUART (Serial)
Dimensions (L x W x H)21 x 15 x 7.87 mm
Operating Temperature-10°C to +50°C (Typical for outdoor sensors)
Laser TypeClass 1 Laser Product (Eye-safe)
Primary ApplicationOutdoor Single-Point Ranging

Frequently Asked Questions

What is the communication interface of the YDLIDAR SDM18 sensor?

The SDM18 outputs distance measurements via a standard UART (Serial) interface. It communicates using 3.3V logic levels, making it directly compatible with most microcontrollers like Arduino, ESP32, and Raspberry Pi (with logic level shifting if required) without the need for additional signal conditioning.

Can this sensor operate indoors or is it only for outdoor use?

While engineered for outdoor durability and performance across varying light conditions, the SDM18 can be used indoors. Its laser-based time-of-flight principle provides accurate measurements in both environments, though its maximum 18m range is optimized for outdoor-scale applications.

What power supply is required, and what is the typical current consumption?

The sensor requires a stable 3.3V DC power supply. Under typical operation, it draws between 140mA and 150mA. Ensure your power source or regulator can provide this current, especially when the sensor is operating at its maximum 250Hz update rate.

How do I configure the measurement update rate (frequency)?

The update rate, configurable from 50Hz to 250Hz, is typically set by sending specific command frames over the UART interface. Consult the official YDLIDAR SDM18 datasheet for the exact protocol and command structure to adjust the frequency for your application's speed versus power consumption needs.

Package Includes

  • 1 x YDLIDAR SDM18 Laser Ranging Sensor
  • 1 x USB Type-C Cable
  • 1 x USB Adapter Board

Additional Information

Weight 0.028 kg
Dimensions 2.1 × 1.5 × 0.787 cm