EAI X2N 2D Lidar Scanner High Precision SLAM Mapping Laser Radar Module for Autonomous Robot Navigation and Obstacle Avoidance
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YDLIDAR X2N LiDAR
Overview
YDLIDAR X2N is a 360° two‑dimensional distance measurement LiDAR developed by Shenzhen EAI Technology Co., Ltd. Based on the triangulation principle and combined with optical, electrical, and algorithmic designs, it achieves high‑frequency, high‑precision ranging. While measuring distances, the mechanical structure rotates 360° to continuously acquire angle information, outputting point cloud data of the scanned environment. It is widely used in robot navigation, obstacle avoidance, security surveillance, and 3D reconstruction.
Key Features
- 360° Omnidirectional Scanning – Full coverage with no blind spots, delivering complete point cloud data.
- High Accuracy & Stability – Low ranging error and strong resistance to ambient light interference.
- Wide Ranging Range – Typical 0.12 m ~ 8 m indoors (80% reflectivity).
- Laser Safety – Complies with Class I laser safety standard (IEC 60825-1), safe for human eyes.
- Adjustable Motor Speed – Supports external PWM signal for scan frequency adjustment (5 Hz ~ 8 Hz).
- Low Power & Compact Size – Typical operating current 350 mA, weight only 116 g, easy to integrate.
Applications
Robot navigation and obstacle avoidance; ROS education and research; area security monitoring; environmental scanning and 3D reconstruction; home service robots (e.g., vacuum cleaners) navigation and obstacle avoidance.
Detailed Description
The YDLIDAR X2N employs triangulation ranging technology, performing 3000 measurements per second (measurement frequency 3000 Hz) to rapidly capture the surrounding environment. The scan frequency can be flexibly adjusted via the PWM signal on the M_CTR pin (5 Hz ~ 8 Hz) to suit different applications. In terms of accuracy, the absolute error is ≤ ±2 cm for distances ≤ 1 m; relative error ≤ 3.5% for 1 m < distance < 6 m; and ≤ 5.0% for 6 m ≤ distance ≤ 8 m, ensuring reliable and precise data.
The electrical interface uses an MX1.25‑4P female connector, providing 5 V power (4.8 V ~ 5.2 V), serial communication (Tx, 3.3 V logic, baud rate 115200 bps), and motor speed control (M_CTR). By controlling the M_CTR pin level or PWM signal, the radar can be put into standby or operating mode, and its rotation speed can be adjusted. The internal optical system uses an infrared pulse laser with wavelength 775 nm ~ 800 nm and average output power ≤ 13 mW, meeting Class I safety requirements—no additional protective measures are needed.
The operating temperature range is 0 ℃ ~ 40 ℃, storage temperature -10 ℃ ~ 60 ℃, ensuring stable operation in typical indoor environments. The polar coordinate system is defined with the rotation center as the pole, clockwise as positive angle, and the zero‑angle at the front of the motor (with an individual deviation of ±3°), facilitating data parsing and secondary development.
Specifications
| Parameter | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|
| Measurement Frequency | – | 3000 | – | Hz | 3000 measurements/sec |
| Scan Frequency | 5 | 6 | 8 | Hz | Adjustable via PWM |
| Ranging Range | 0.12 | – | 8 | m | Indoor, 80% reflectivity |
| Scanning Angle | 0 | – | 360 | Deg | Full circle |
| Absolute Error (distance ≤ 1 m) | – | – | ±2 | cm | – |
| Relative Error (1 m < d < 6 m) | – | 3.5 | – | % | – |
| Relative Error (6 m ≤ d ≤ 8 m) | – | 5.0 | – | % | – |
| Angular Resolution (5 Hz) | – | 0.6 | – | Deg | Depends on scan frequency |
| Angular Resolution (6 Hz) | – | 0.72 | – | Deg | |
| Angular Resolution (8 Hz) | – | 0.96 | – | Deg | |
| Pitch Angle | 0.25 | – | 1.75 | Deg | – |
| Parameter | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|
| Supply Voltage | 4.8 | 5.0 | 5.2 | V | Exceeding may damage, lower degrades performance |
| Supply Current (required) | – | – | 1000 | mA | Driver capability requirement |
| Operating Current | – | 350 | 500 | mA | System running, motor rotating |
| Pin | Type | Description | Default | Range |
|---|---|---|---|---|
| VCC | Power | Power positive | 5 V | 4.8 V ~ 5.2 V |
| Tx | Output | System serial output (LiDAR → host) | – | 3.3 V logic |
| GND | Power | Power ground | 0 V | – |
| M_CTR | Input | Motor speed control | – | 0 V ~ 3.3 V (PWM) |
| Parameter | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|
| Baud Rate | – | 115200 | – | bps | 8 data bits, 1 stop bit, no parity |
| Signal High Level | 2.4 | 3.3 | 3.5 | V | – |
| Signal Low Level | 0 | – | 0.6 | V | – |
| Input Condition | Function | Note |
|---|---|---|
| Constant Low | Standby – motor stops | – |
| PWM (10 kHz, 3.3 Vpp) | Operating, scan frequency controlled by duty cycle | Higher duty → faster speed |
| Constant High | Operating, scan frequency resets to default | 6 ± 0.5 Hz |
| Floating | Operating, scan frequency resets to default | 6 ± 1.5 Hz |
| Parameter | Typ. | Unit | Note |
|---|---|---|---|
| PWM Frequency | 10 | kHz | Square wave |
| Parameter | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|
| Laser Wavelength | 775 | – | 800 | nm | Infrared |
| Average Output Power | – | – | 13 | mW | – |
| Laser Safety Class | Class I (IEC 60825-1) | ||||
| Parameter | Min. | Typ. | Max. | Unit | Note |
|---|---|---|---|---|---|
| Operating Temperature | 0 | – | 40 | ℃ | Non‑condensing |
| Storage Temperature | -10 | – | 60 | ℃ | Packaged |
| Illumination | 2000 | – | 20000 | Lux | Reference only |
| Weight | – | 116 | – | g | Bare device |
DETAILED DESCRIPTION
General Shipping Info
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- Order Changes & Cancellations
- Payment
- Shipping Address
- Shipping Methods, Time & Costs
- International Shipping & Customs
- Order Status
- Receiving Your Package
- Returns & Exchanges
- Warranty & Repairs
- Technical Support
- Buyer Protection
For any immediate assistance, reach us at shop@youyeetoo.com.
Order Changes & Cancellations
Cancelling or Changing an Order
- You may cancel your order or change the delivery address within 24 hours of placing it.
- Because most orders enter processing within 12 hours, we recommend contacting us as soon as possible. Once the status changes to “Processing”, the order can no longer be cancelled or altered.
- To request a change or cancellation, email shop@youyeetoo.com with your order number and details.
Refunds for Cancellations
- Cancelled before shipment: Full refund processed within 3 business days to your original payment method.
- Already shipped / rejected at delivery: The order cannot be cancelled. If you reject the parcel, we will refund the order total minus the original shipping fee after the returned package is received back at our warehouse.
Payment
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If your order status shows “Pending / Waiting for T/T”, your payment has not yet cleared. Sending us a payment receipt can speed up the process.
Shipping Address
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Shipping Methods, Time & Costs
Dispatch Time
Most in‑stock products ship from Shenzhen, China within 1–3 business days.
Carriers & Transit Times
| Service | Carrier | Estimated Delivery |
|---|---|---|
| Premium Express | FedEx / UPS / DHL | 5–7 business days |
| Standard Express | YunExpress / EMS / 4PX / SF Express | 10–15 business days |
Tracking
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Track your order: Order Tracking Page (please ensure this link points to your live tracking tool).
Shipping Costs
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Local Delivery via Amazon
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International Shipping & Customs
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Order Status
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Receiving Your Package
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“Delivered” but Not Received
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Missing or Lost Package
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Returns & Exchanges
Return Policy at a Glance
| Reason for Return | Who Pays Return Shipping? | Your Refund |
|---|---|---|
| Personal reason (30‑day no‑reason return) | Buyer pays return shipping | Product price minus original outbound shipping |
| Our error (defective, wrong item, transit damage) | We cover return shipping (label provided) | Full refund (including original shipping) |
30‑Day No‑Reason Return
If you change your mind, you have 30 days from the shipment date to return an item.
- Items must be unused, undamaged, and in their original packaging with all labels intact.
- Refunds are processed within 3 business days of us receiving the return, to your original payment method.
How to Start a Return
Email shop@youyeetoo.com with:
- Your order number
- Reason for return
- Clear photos or videos showing the product and any issues
Once approved, we will provide the return address. Please share the return tracking number once shipped.
Specific Return Scenarios
Defective Item
Contact us before returning. We will, upon verification, replace the item or issue a full refund.
Wrong Item Received
Mistakes occasionally happen. You may keep the incorrect item with a partial refund, or request the correct item. If we made the error, we will provide a free return shipping label to send the wrong item back.
Damaged During Transit
Please reject the delivery immediately if the package appears damaged. Then contact us with photos/videos. We will work with the carrier to expedite a replacement or full refund.
Missing or Lost Item
See the Receiving Your Package section above.
Warranty & Repairs
Standard Warranty
- Most boards come with a 12‑month limited warranty from the date of shipment.
- Covered: Manufacturing defects and hardware failures under normal use. We will repair or replace defective components free of charge, covering one‑way shipping back to you.
- Not covered (out‑of‑warranty repairs or excluded causes): Repairs will be charged. All costs (repair, shipping, handling) are the customer’s responsibility.
Important Note on Chip Damage
Damage to main chips/MCUs caused by misuse—such as overvoltage, reverse polarity, short circuits, liquid ingress, or improper firmware flashing—is not covered under free warranty. In these cases we will provide a paid repair quote based on the chip value.
Warranty Exceptions
This warranty does not cover damage resulting from:
- Operating environment not meeting national standards (overvoltage, overcurrent, lightning, high temperature, extreme humidity, vibration, etc.)
- External events (earthquake, fire, etc.)
- Human factors (liquid contact, abuse, oxidation, rust, dropping)
- Failure to follow official installation, usage, maintenance, or storage instructions
- Unauthorised modification, disassembly, or re‑assembly
- Natural wear and tear, cosmetic degradation, or breakage during use
- Any other issue not directly caused by design, technical, or manufacturing defects
Warranty Claim Process
To avoid delays, please email shop@youyeetoo.com with:
- Detailed description of the problem (What happened? When? How?) and your full order number.
- Steps you’ve already taken to resolve the issue.
- The item code printed on the outer packaging.
- Clear photos/videos showing the defect, taken under good lighting.
Technical Support
- We offer lifetime technical support to all customers.
- Search the youyeetoo Forum first—many common questions are already answered there.
- You can also contact us directly or post a question on the Forum for help with specifications, debugging, or setup.
Buyer Protection
Buyer Protection is a set of guarantees that lets you shop with confidence. You are protected when:
- The item does not arrive within the promised time.
- The item received is significantly different from the description.
- An item guaranteed as genuine turns out to be counterfeit.
Contact
For all the above matters, our support mailbox is:
shop@youyeetoo.com