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Product description: D200 Developer Kit laser scanner - LiDAR LD14P - 360 degrees - 8 m - Waveshare 24659
Development module of the D200 laser scanner from Waveshare, based on LiDAR LD14P . It offers a range of up to 8 m and can scan the surroundings in a 360° range. The reading frequency is 4000 Hz , and the scanner rotates at a frequency of 6 Hz, which can be adjusted to your needs, ranging from 2 Hz to 8 Hz. It has a current consumption of up to 300 mA at a voltage of 5 V ±10%. The compact dimensions of the scanner allow it to be used in robots, drones, mapping devices, or, for example, to detect movement indoors. Control is via the UART interface, and the set includes an appropriate adapter that allows you to connect the device to a computer via a USB connector.
D200 Developer Kit laser scanner - LiDAR LD14P - 360 degrees - 8 m - Waveshare 24659.
Principle of operation of the LiDAR sensor.
How does LiDAR work?
LiDAR sensors - Light Detection and Ranging - allow for precise measurement of the distance from objects. The LD14P system uses the triangulation method for this purpose - the light pulse transmitted by the laser diode is reflected from the object and, depending on the distance, falls on the CMOS photosensitive matrix at different angles. The laser used here meets the requirements of class 1, so it is safe for people and animals.
To obtain a 2D image, it is also necessary to change the position of the laser. The D200 module does this by rotating it a full 360°, at a default frequency of 6 Hz. Thanks to this, knowing the current angle of rotation, you can obtain information about the position of objects in space, without the need to use additional sensors.
Pinout description
The D200 laser scanner module is equipped with a 4-pin connector , and the set includes an appropriate connection cable. The outputs include:
- 1 - PWR / RX - radar data input or rotation speed control
- 2 - GND - common ground of the system
- 3 - TX - radar data output
- 4 - VCC - supply voltage input from 4.5 V to 5.5 V
The typical high voltage on the TX data output is 3.3 V, maximum 3.5 V. The maximum safe voltage on the RX pin is 3.3 V.
Pinouts of the D200 laser scanner module.
Internal structure of the module.
Communication with the laser scanner
LiDAR LD14P communicates with other devices via the popular UART interface. The basic transmission parameters of the module are:
- Baudrate: 230400
- Number of data bits: 8
- Number of stop bits: 1
- Parity and flow control bits: none
To receive data from the scanner, you can use the included USB adapter using the software available on the manufacturer's website . The interface also allows you to connect most microcontrollers or minicomputers, such as Arduino or Raspberry Pi . However, remember to use safe voltages for the module at the data input (RX).
Product technical specifications
- LiDAR model: LD14P
- Supply voltage: 5V ±10%
- Current consumption: up to 300 mA
- Scanning range: from 0.1 m to 8 m
- Measurement frequency: 4000 Hz
- Rotation (scanning) frequency: 2 Hz to 8 Hz (default 6 Hz)
- Measurement accuracy: up to 5 mm (from 0.1 m to 0.5 m, white surface)
- Scanning range: 360°
- Interface: UART
- Ambient light resistance: 80000 lux
- Laser wavelength: 775 nm to 800 nm
- Operating temperature: -10℃ to 50℃
- Dimensions: 96.3 x 59.8 x 38.8 mm
- Weight: 101 g
Set contents
- 1x D200 Developer Kit Laser Scanner - LiDAR LD14P - 360 degrees - 8 m - Waveshare 24659
- 1x 4-pin cable, length 9 cm
- 1x UART/USB Adapter
Elements included in the set.
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