The LaserPING 2m Rangefinder provides an easy method of distance measurement. This near-infrared, time-of-flight (TOF) sensor is ideal for taking measurements between moving or stationary objects.

A single I/O pin is used to both query the LaserPING sensor for its latest distance measurement, and to read the reply.

The LaserPING 2m Rangefinder can be used with nearly any microcontroller, utilizing its PWM mode or optional serial mode. It is designed to be circuit- and code-compatible with the PING))) Ultrasonic Distance Sensor (#28015), making applications adaptable where different environmental conditions need to be considered. Measurements can even be taken through an acrylic window to protect the sensor; see the product guide for material selection guidelines.

The sensor’s built-in co-processor ensures the right logic levels. Its I/O connections operate at the same voltage supplied to the VIN pin, for compatibility with 3.3V and 5V microcontrollers.

Features:

Non-contact distance measurement with a 2 –200 cm range
Factory pre-calibrated for accuracy with 1 mm resolution
Eye-safe invisible near-infrared (IR) illumination using a class 1 laser emitter
Reverse polarity protection if VIN and GND are accidentally swapped
Onboard microprocessor handles complex sensor code
Compatible with 3.3V and 5V microcontrollers
Breadboard-friendly 3-pin SIP form-factor with mounting hole

Application Ideas:

Physics studies
Security systems
Interactive animated exhibits
Robotics navigation and parking assistant systems
Interactive applications such as hand detection and 1D gesture recognition
Volume or height detection in process control systems

Specifications:

Laser: 850 nm VCSEL (Vertical Cavity Surface Emitting Laser)
Range: 2–200 cm
Resolution: 1 mm
Typical refresh rate: 15 Hz PWM mode, 22 Hz serial mode
Power requirements: +3.3V DC to +5 VDC; 25 mA
Communication: PWM (idle low) or serial 9600 baud (idle high); logic level = VIN
Operating temperature: +14 to +140 °F (-10 to +60 °C)
Laser eye safety: near-infrared Class 1 laser product
Field of illumination: 23° degrees
Field of view: 55° degrees
Form factor: 3-pin male header with 0.1" spacing
PCB dimensions: 22 x 16 mm