RP LIDAR A3M1 360°Laser Range Scanner-25 Meter Range


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SKU: 134536
  1. Ranging 16000 Times per Second
  2. 25 Meters Range Radius
  3. Indoor and Outdoor Availability
  4. 360 Degree Omnidirectional Laser Range Scanning
  5. 4 Centimeters Ultra-thin
  6. Brushless Motor, Low Noise, New Non-contact Drive
  7. OPTMAG Original Design, 5 Years Ultra-long Life
  8. The RPLIDAR A3 system adopts the low power infrared laser Light


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Category: LiDAR Sensor


The RPLIDAR A3M1 is the next generation low cost 360 degrees 2D laser scanner (LIDAR) solution developed by SLAMTEC. It can take up to 16000 samples of laser ranging per second with high rotation speed. And equipped with SLAMTEC patented OPTMAG technology, it breakouts the life limitation of traditional LIDAR system so as to work stably for a long time.

The system can perform 2D 360-degree scan within a 25-meter range. The generated 2D point cloud data can be used in mapping, localization and object/environment modeling. Compared with RPLIDARs in other series, RPLIDAR A3M1 has a more stable performance when detecting objects in the long distance, objects in white or black alternatively and objects under direct sunlight, which is ideal for map building in the outdoor environment within a 25-meter ranging radius. Therefore, it can be widely applied in many consumer-oriented business scenarios.

RPLIDRA A3M1 supports to work under two modes alternatively: enhanced mode and outdoor mode. In the enhanced mode, it works with the maximum ranging radius and sampling rate to realize an optimistic mapping performance in the indoor environments. While in the outdoor mode, RPLIDAR A3M1 works with a more reliable resistance to daylight interference, which prevents it from “blind” in an outdoor environment. The typical scanning frequency of RPLIDAR A3M1 is 10Hz(600rpm), and the frequency can be freely adjusted within the 5-20Hz range according to the specific requirements. With the 10Hz scanning frequency, the sampling rate is 16kHz and
the angular resolution is 0.225°.

Due to the improvements in SLAMTEC hardware operating performance and related algorithm, RPLIDAR A3M1 works well in all kinds of indoor environment and outdoor environment with direct sunlight. Meanwhile, before leaving the factory, every RPLIDAR A3M1 has passed the strict testing to ensure the laser output power meet the eye-safety standard of IEC-60825 Class 1.

System connection:

The RPLIDAR A3M1 consists of a range scanner core and the mechanical powering part which makes the core rotate at a high speed. When it functions normally, the scanner will rotate and scan clockwise. And users can get the range scan data via the communication interface of the RPLIDAR and control the start, stop and rotating speed of the rotate motor via PWM.

The RPLIDAR A3M1 comes with a rotation speed detection and adaptive system. The system will adjust the angular resolution automatically according to the actual rotating speed. And there is no need to provide a complicated power system for RPLIDAR. In this way, the simple power supply schema saves the BOM cost. If the actual speed of the RPLIDAR is required, the host system can get the related data via the communication interface.


The RPLIDAR A3M1 is based on laser triangulation ranging principle and adopts the high-speed vision acquisition and processing hardware developed by SLAMTEC. The system ranges more than 16000 times per second.

During every ranging process, the RPLIDAR emits modulated infrared laser signal and the laser signal is then reflected by the object to be detected. The returning signal is then sampled by a vision acquisition system in RPLIDAR and the DSP embedded in RPLIDAR starts processing the sample data and outputs distance value and angle value between object and RPLIDAR via the communication interface. When driven by the motor system, the range scanner core will rotate clockwise and perform the 360-degree scan for the current environment.

Communication interface:

The RPLIDAR A3M1 uses separate 5V DC power for powering the range scanner core and the motor system. And the standard RPLIDAR A3M1 uses XH2.54-5P male socket. The detailed interface definition is shown in the following figure:

Application Scenarios:
  1. General robot navigation and localization
  2. Environment scanning and 3D re-modeling
  3. Service robot or industrial robot working for long hours
  4. Home service/cleaning robot navigation
  5. localization General simultaneous localization and mapping (SLAM)
  6. Smart toy’s localization and obstacle avoidance.


■ Ranging 16000 Times per Second

The sample rate of LIDAR directly decides whether the robot can build map quickly and accurately. RPLIDAR A3 improves the internal optical design and algorithm system to make the sample rate up to 16000 times, which is much better than most competitors.

■ 25 Meters Range Radius

With algorithm optimization, the ranging radius of RPLIDAR A3 has been increased to 25 meters, which means more environment outline information is to be collected

■ Indoor and Outdoor Availability

PLIDRA A3 supports to work under two modes alternatively: enhanced mode and outdoor mode. In enhanced mode, RPLIDAR A3 works with the maximum ranging radius and sampling rate to realize an optimistic mapping performance in indoor environments. While in outdoor mode, RPLIDAR A3 works with a more reliable resistance to daylight interference. It keeps its stable performance when detecting white and black objects.

■ 360 Degree Omnidirectional Laser Range Scanning

The ranging core of RPLIDAR A3 runs clockwise to perform a 360-degree omnidirectional laser range scanning for its surrounding environment and then generate an outline map for the environment.

■ 4 Centimeters Ultra-thin

With the carefully designed parts and internal mechanical system, the RPLIDAR A3 keeps its exceptional performance within its 4-cm thick compact size. It is ideal for all kinds of service robots.

■ Brushless Motor, Low Noise, New Non-contact Drive

Compared with the traditional belt drive mode, RPLIDAR A3 uses the self-designed brushless motor to reduce the mechanical friction in running. Therefore, the RPLIDAR A3 can run smoothly without any noise.

■ OPTMAG Original Design, 5 Years Ultra-long Life

Most traditional non-solid LIDARs use slip ring to transfer power and data information, however, they only have thousands of hours of life due to mechanical wearing out. SLAMTEC has integrated the wireless power and optical communication technology to self-design the OPTMAG technology, which breakouts the life limitation of traditional LIDAR system. It fixes the electrical connection failure caused by the physical wearing out so as to prolong the life to 5 years and even more.

■ The RPLIDAR A3 system adopts the low power infrared laser Light

As its light source, and drives it by using modulated pulse. The laser emits light in a very short time frame which can ensure its safety to human and pets. It has already reached the Class 1 Safety Standard.

Note: Find datasheet in Attachments For more detailed descriptions about the product.

Useful Link:


Package Includes:

1 x RP LIDAR A3M1 (PWM motor driver embedded)
1 x Micro-USB cable
1 x DC Power Cable[/vc_column_text][/vc_column][/vc_row]

SKU: 134536 Category:
Distance Range

White object: 25 meters;Black object: 10 meters

Sample Rate

16 kHz

Scan Rate

Typical value: 15 Hz (adjustable between 5 Hz-20 Hz)

Angular Resolution


Communication Interface


Communication Speed

256000 bps


Support former SDK protocols

Dimensions (LxWxH) mm

76 x 41 (Diameter x Height)

Weight (g):


Shipping Weight 0.375 kg
Shipping Dimensions 14 × 9 × 8 cm
6 Months Warranty Against Sealed Product

This item is covered with a standard warranty of 6 Month from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Warranty  Against Sealed Product:

This product comes with manufacturer seal so, warranty Policy shall cover only those issues pertaining to the manufacturing defects in the product. In any other case, No return will be accepted if the seal is broken.

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Country Of Origin: China

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