SKU: SENS-0074
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Waveshare TOF Laser Range Sensor Module - UART Communication, 0.02m to 20m Range

₹2,199.00 (Inclusive of all taxes)
Out of Stock

The Waveshare TOF Laser Range Sensor is a compact D-TOF (Direct Time-of-Flight) module offering precise distance measurement from 0.02m to 20m via UART communication. It is compatible with 3.3V logic systems like Raspberry Pi, ESP32, and Arduino, featuring a Class 1 laser and robust performance under high ambient light for robotics and automation applications.

Features

  • D-TOF laser ranging with 0.02m to 20m measurement capability
  • High accuracy: ±20mm at 1m distance (±2%)
  • Fast 30Hz refresh rate for real-time distance detection
  • UART interface with 115.2kbps baud rate and 3.3V logic level
  • Robust operation under up to 100,000 Lux ambient light

Out of stock

Description

This sensor employs Direct Time-of-Flight (D-TOF) laser technology with high-precision optical collimation for stable and accurate single-point distance measurement. An integrated MCU runs sunlight suppression and contamination compensation algorithms to ensure reliable performance across varying target surfaces and challenging lighting conditions, including outdoor environments.

Designed for seamless integration into embedded systems, the module operates from a 4V to 5.6V DC supply with low 170mW power consumption. Its compact PC enclosure houses a safe Class 1 (940nm) laser with a narrow 3° ±0.5° field of view, making it suitable for space-constrained applications in robotics, drones, and industrial automation where precise, real-time ranging is required.

Key Features

  • Direct Time-of-Flight (D-TOF) laser sensing principle for precise distance calculation
  • Wide operating temperature range from -20°C to +70°C ensures environmental durability
  • Onboard signal processing MCU with advanced compensation algorithms for stable output
  • Compact and lightweight polycarbonate (PC) enclosure for easy integration
  • Low power consumption design ideal for battery-powered portable devices
  • High ambient light tolerance up to 100,000 Lux for reliable outdoor use
  • Simple UART serial protocol for easy interface with microcontrollers and SBCs
  • Optimized performance-to-cost ratio for professional and educational projects

Applications

  • Robotics navigation and obstacle avoidance for AGVs and drones
  • Precision object positioning and level detection in industrial automation
  • Volume and bin level measurement in logistics and warehousing systems
  • Gesture recognition and proximity sensing in interactive kiosks
  • Parking assistance and blind-spot detection in automotive prototypes

Technical Specifications

Item TypeLaser Range Sensor
Measurement Range0.02m – 20m
Measuring Accuracy (at 1m)±20mm (±2%)
Field of View3° ±0.5°
Refresh Rate30Hz
Ambient Light Tolerance100,000 Lux
Communication InterfaceUART
Baud Rate115.2 kbps
Logic Level3.3V
Power Supply Voltage4V – 5.6V DC
Power Consumption170mW
Laser ClassClass 1 (940nm)
Operating Temperature-20°C to +70°C
Dimensions (L x W)35mm x 15mm
Weight4g

Frequently Asked Questions

What is the operating voltage and logic level for this TOF sensor?

The sensor requires a power supply voltage between 4V and 5.6V DC. The UART communication interface operates at a 3.3V logic level, making it directly compatible with most microcontrollers like ESP32, Raspberry Pi GPIO, and STM32 without requiring a level shifter.

How do I connect and communicate with this sensor using UART?

Connect the module's 4-pin SH1.25 connector to your host controller's UART TX/RX pins, ensuring correct voltage (3.3V logic) and ground. The default baud rate is 115,200bps. The sensor outputs distance data in a predefined serial packet format, which can be parsed according to the provided communication protocol documentation.

What is the measurement accuracy and how does ambient light affect it?

At a 1-meter distance, accuracy is ±20mm (±2%). The sensor incorporates sunlight suppression algorithms and is rated to tolerate ambient light up to 100,000 Lux, ensuring stable and reliable measurements even in bright outdoor conditions without significant accuracy degradation.

Is this laser sensor safe for use in consumer applications?

Yes, the module uses a Class 1 laser (940nm wavelength), which is considered eye-safe under normal operating conditions. This classification indicates the accessible laser radiation is not hazardous, making it suitable for use in open applications, educational projects, and consumer-facing prototypes.

What is the refresh rate and field of view for this distance sensor?

The sensor provides distance updates at a fast 30Hz refresh rate, suitable for real-time control applications. It has a very narrow field of view of 3° ±0.5°, allowing for precise targeting of specific objects and minimizing interference from background clutter.

Package Includes

  • 1 x Waveshare TOF Laser Range Sensor Module
  • 1 x SH1.25 4-pin cable (100mm length)

Additional Information

Weight 0.004 kg
Dimensions 3.5 × 1.5 cm