SLAM mapping and navigation
360° scan out to 25 m at 10 Hz gives the point clouds SLAM and obstacle avoidance run on.
Engineering inference
Slamtec
Slamtec RPLIDAR A3M1 25 m 360° Lidar
Slamtec RPLIDAR A3M1: 360° 2D laser-triangulation scanner with OPTMAG, 0.2–25 m on white (10 m black) in enhanced mode, 20 m in outdoor mode, 16 kHz sampling, 10 Hz typical (5–15 Hz), 0.225° angular resolution, 785 nm Class 1, 3.3 V UART at 256000 bps, single 5 V supply (450 mA typ.), XH2.54-5P lead, Ø76 × 41 mm, 190 g.
A3M1Development boardPrice$599.00www.dfrobot.com · in stock
Buy at www.dfrobot.com Overview
Motor essentials
Facts about the complete product. Unknown values remain open design questions.
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
ROS 2 robot builds
A maker-published or maker-linked ROS 2 driver means it drops into a ROS 2 / Nav2 stack without a custom node.
Engineering inferenceNo-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
3D model & CAD
3D model & CAD files
Generated from the datasheet's dimensioned drawing and measured against it. Download the STEP to check fit in your own enclosure.
- Envelope (L × W × H)
- 76 × 76 × 41 mm
- Verification
- generated
- Envelope complete
- Yes
Range & scan
Range, scan and interface
How far it sees, how fast it scans, and how the robot reads it.
- Lidar type
- 2D scanning
- Ranging method
- triangulation
- Min range
- 0.2 m
- Max range
- 25 m
- Accuracy detail
- Resolution ≤ 1 % of distance (≤ 12 m), ≤ 2 % (12–25 m) per DFRobot; Slamtec prints no accuracy figure
- Scan frequency
- 10 Hz
- Sample rate
- 16,000 Hz
- Angular resolution
- 0.225 °
- Horizontal field of view
- 360 °
- Wavelength
- 785 nm
- Laser safety class
- Class 1 (IEC 60825)
- Interface
- UART
- ROS 2 driver
- Yes
- ROS drivers
- rplidar_ros (ros2 branch), rplidar_ros (ROS 1)
- Weight
- 190 g
- Supply voltage
- 4.9–5.2 V
| Pin / wire | Position | Role | Notes |
|---|---|---|---|
| VCC | power in | total power (core + motor), 4.9–5.2 V | |
| TX | uart tx | serial output of the scanner core, 3.3 V TTL (3.5 V max) | |
| RX | uart rx | serial input of the scanner core, 3.3 V TTL (current-sensed, ≥ 1.6 V high) | |
| GND | ground | ground | |
| MOTOCTL | motor ctrl | scan motor enable / 25 kHz PWM speed control, active high, internal pull-down (0–5 V) |
| Connector | Type |
|---|---|
| xh254_5p | XH2.54-5P male socket: red VCC, yellow TX, green RX, black GND, blue MOTOCTL |
Max range is the printed figure at the stated target reflectivity; accuracy is the typical datasheet value. Scan frequency is the default rotation or frame rate.
Specifications
Motor performance
No-load, rated-load and stall figures retain their separate test conditions.
Stall torque and current are not continuous ratings. Check the duty cycle and starting load when choosing the driver and power supply.
Thermal limits by level
Product operating conditions, chip ambient ratings, package case limits and junction maxima remain separate.
Motor body
- Product operating range
- 0 to 40 °C
Mechanical dimensions
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
- Length
- 76 mm
- Width
- 76 mm
- Reported height / thickness
- 41 mm
- Mounting hole records
- 4
Attached generated geometry is an approximate envelope. A generated outline does not establish an electrically verified PCB footprint.
Board connectors
| ID / type | Pins | Pitch | Notes |
|---|---|---|---|
| xh254_5pXH2.54-5P male socket: red VCC, yellow TX, green RX, black GND, blue MOTOCTL | 5 | 2.54 mm | — |
Complete structured record
Every available field, including details beyond the summaries. Null means the value has not been established.
Sourcing & files
Supplier offers
US / USD is the target market. Observed price and stock are separate from a delivery quote.
www.dfrobot.com
US · USD
$599.00Minimum quantity unknown
- Observed stock
- in stock
- Checked
- Oct 17, 2026, 06:01 PM UTC
- Delivery estimate
- Not quoted
This observation is stale or has no verified check time. Recheck with the supplier.
Visit supplier (opens in a new tab)Delivery depends on quantity, postal code and shipping method. A dispatch statement such as “ship today” is not an arrival estimate.
Design files and references
Each source keeps its own verification status. Confirm the part revision and file contents before using it in a design.
Datasheet (opens in a new tab)
Manufacturer reference
Slamtec RPLIDAR A3 — DFRobot store photo (opens in a new tab)
Unverified reference
inspected: round black dome with a curved scan window lit purple, 5-wire lead; distributor photo
STEP (generated from datasheet drawing) — link unavailable
Generated asset
cad_check passed
Generated envelope geometry may also exist for this record. It does not replace manufacturer CAD or a verified electrical land pattern.
Source evidence
Document provenance, retrieval dates and the field groups supported by each source.
Supports: spec.constraints.electrical.io_voltage_v, spec.constraints.electrical.supply_voltage_max_v, spec.constraints.electrical.supply_voltage_min_v, spec.constraints.thermal.operating_temp_max_c, spec.constraints.thermal.operating_temp_min_c, spec.geometry.cad.bbox.height_mm, spec.geometry.cad.bbox.length_mm, spec.geometry.cad.bbox.width_mm, spec.geometry.cad.envelope_complete, spec.geometry.cad.mesh_path, spec.geometry.cad.step_path, spec.geometry.cad.verification, spec.geometry.dimensions.height_mm, spec.geometry.dimensions.length_mm, spec.geometry.dimensions.width_mm, spec.geometry.mounting_holes, spec.geometry.other.weight_g, spec.provides.accuracy_note, spec.provides.angular_resolution_deg, spec.provides.features, spec.provides.fov_horizontal_deg, spec.provides.interface, spec.provides.laser_class, spec.provides.lidar_type, spec.provides.range_max_m, spec.provides.range_min_m, spec.provides.ranging_method, spec.provides.ros2_driver, spec.provides.ros_drivers, spec.provides.sample_rate_hz, spec.provides.scan_frequency_hz, spec.provides.wavelength_nm, spec.usage.connectors, spec.usage.pinout, spec.usage.pinout_complete, spec.usage.requirements.other.supply_current_ma
sha256 5ebb506d2660241f5515b59616f4dd8efe49e5d9d354028051cc9ec86707236d
Supports: offers
FAQ
Slamtec RPLIDAR A3M1 25 m 360° Lidar questions
What voltage powers the Slamtec RPLIDAR A3M1 25 m 360° Lidar?
Supply range 4.9–5.2 V.
How much does the Slamtec RPLIDAR A3M1 25 m 360° Lidar cost?
From $599 at www.dfrobot.com. Prices are observed unit prices before tax and shipping.
What are the Slamtec RPLIDAR A3M1 25 m 360° Lidar dimensions?
76 × 76 × 41 mm. A STEP model is available for enclosure fit checks.
Where does this Slamtec RPLIDAR A3M1 25 m 360° Lidar data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.