Distance, altitude and proximity sensing
Single-point ranging to 15 m over uart — altitude hold, level sensing and stop-distance checks.
Engineering inference
YDLIDAR (Shenzhen EAI Technology)
YDLIDAR SDM15 Single-Point ToF Lidar
YDLIDAR SDM15 is a single-point ToF lidar rangefinder. It measures 50 mm to 15 m at 80 % reflectivity, with ≤ 20 mm error to 1 m, 3 % to 2 m and 4 % to 15 m. It ranges at 10–1800 Hz (adaptive) and talks two-way 3.3 V UART at 460800 baud (up to 1.5 Mbps) on GH1.25-4P. 5 V / 100 mA, 905 nm Class I laser, 60 klux, 15 g, 45.38 × 18.78 × 24.3 mm, 2 × M2 ears 39 mm apart.
SDM15Development boardPrice$45.00aifitlab.com · preorder
Buy at aifitlab.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.
No-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)
- 45.38 × 18.78 × 24.3 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
- single-point
- Ranging method
- dToF
- Min range
- 0.05 m
- Max range
- 15 m
- Max range rated at reflectivity
- 80 %
- Accuracy (±)
- 20 mm
- Accuracy detail
- ≤ 20 mm (≤ 1 m), ≤ 3 % (1–2 m), ≤ 4 % (2–15 m)
- Sample rate
- 1,800 Hz
- Wavelength
- 905 nm
- Laser safety class
- Class I (IEC 60825-1, 21 CFR 1040.10/1040.11)
- Interface
- UART
- Ambient light rating
- 60 klux
- Weight
- 15 g
- Supply voltage
- 4.8–5.2 V
| Pin / wire | Position | Role | Notes |
|---|---|---|---|
| VCC | power in | Power supply — Positive | |
| Tx | uart tx | Output — System serial output | |
| Rx | uart rx | Input — System serial port Input | |
| GND | ground | Power supply — Negative |
| Connector | Type |
|---|---|
| gh125_4p | GH1.25-4P: VCC, Tx, Rx, GND |
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
- -10 to 50 °C
Mechanical dimensions
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
- Length
- 45.38 mm
- Width
- 18.78 mm
- Reported height / thickness
- 24.3 mm
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 |
|---|---|---|---|
| gh125_4pGH1.25-4P: VCC, Tx, Rx, GND | 4 | 1.25 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.
aifitlab.com
US · USD
$45.00Minimum quantity unknown
- Observed stock
- preorder
- Checked
- Oct 18, 2026, 04:13 AM 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
YDLIDAR SDM15 — product photo (opens in a new tab)
Unverified reference
inspected: YDLIDAR-branded render, small black rectangular housing with an oval IR window and two mounting ears; matches the drawing. Distributor-hosted.
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.other.weight_g, spec.provides.accuracy_mm, spec.provides.accuracy_note, spec.provides.ambient_light_klux, spec.provides.features, spec.provides.interface, spec.provides.laser_class, spec.provides.lidar_type, spec.provides.range_max_m, spec.provides.range_min_m, spec.provides.range_reflectivity_pct, spec.provides.ranging_method, spec.provides.sample_rate_hz, spec.provides.wavelength_nm, spec.usage.connectors, spec.usage.pinout, spec.usage.pinout_complete, spec.usage.requirements.other.supply_current_ma
sha256 1ea0876818399ed4f27283962f1017f2f8460336a0b6c40f6a426b3b2f6087d7
Supports: offers
FAQ
YDLIDAR SDM15 Single-Point ToF Lidar questions
What voltage powers the YDLIDAR SDM15 Single-Point ToF Lidar?
Supply range 4.8–5.2 V.
How much does the YDLIDAR SDM15 Single-Point ToF Lidar cost?
From $45 at aifitlab.com. Prices are observed unit prices before tax and shipping.
What are the YDLIDAR SDM15 Single-Point ToF Lidar dimensions?
45.38 × 18.78 × 24.3 mm. A STEP model is available for enclosure fit checks.
Where does this YDLIDAR SDM15 Single-Point ToF 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.
Sources
- YDLIDAR SDM15 Single-Point ToF Lidar datasheet — YDLIDAR (Shenzhen EAI Technology)
- aifitlab.com listing