Product Overview
 The XD-S1500JH (with green light) laser ranging module is developed based on a 905nm semiconductor laser, featuring small size, light weight, and long measuring distance. Its application fields include handheld rangefinders, micro-drones, ranging scopes, etc. It is equipped with a UART (TTL protocol) data transmission interface and provides host computer software and communication protocol command sets to facilitate secondary development by users. The built-in green pointing laser enables users to aim at the target conveniently.
 Features of XD-S1500JH (with Green Light):
 ⦁ Self-developed high-precision calibration and alignment algorithms;
 ⦁ Compact size and light weight;
 ⦁ Long measuring range.

Product Specifications

Structure Specification and Interface Definition
Structure Drawing

Figure 2. XD-S1500JH(with green light) Dimension

 Hardware Interface Definition

Figure 3. Interface Drawing

 Electrical Interface：UART(TTL-3.3V)
 Connector Type：0.5mm*10FPC interface

Figure. Connector wiring sequence

Basic Performance Measurement

The measuring range of this product is defined under the following conditions:
(1) The measurement target has medium reflectivity, such as a building wall surface;
(2) The reflective surface of the measurement target is perpendicular to the laser emission direction;
(3) The measurement is carried out in clear weather but not under direct sunlight.

Electrical Specification
Power Supply and Power Consumption

Reliability Standard

UART Interface
BPS： 19200bps
tart bit：  1 
Date bits： 8 
Stop bit：  1 
Check bit：None
Flow control：None
Control Command
AA 02 F0 9C    Single measurement    Returns distance data
AA 02 F1 9D    Continuous measurement     Continuously returns distance data
AA 02 F2 9E    Stop continuous measurement     Return  AA 02 F2 9E
AA 02 F3 9F   Turn on green laser
AA 02 F4 A0   Turn off green laser
Product Return Data Format:    
AA High 2 digits Low 2 digits Decimal digit + 0  Check code        

Starts with 0xAA as the frame header, followed by 3 bytes of distance data in BCD code, with the unit in yards (YD). If no valid distance is measured, all distance data bytes are 0.

The last byte is a fixed terminator: EE.    
AA 10 02 70 EE        1002.7YD
AA 14 26 10 EE        1426.1YD
AA 00 00 00 EE        No valid distance measured
 Appendix
System Integration Guidance
Before users begin development with the XD-S1500JH (with green light) module, please contact our personnel in advance to obtain technical specifications and other relevant documentation. Preliminary evaluation, debugging, and verification steps can be carried out to determine whether the product meets mass production requirements.
Recommended procedure:
Read the XD-S1500JH (with green light) technical specification;
Purchase and obtain the XD-S1500JH (with green light) prototype through official channels;
Contact our personnel for documentation before starting development;
Select an appropriate development platform as needed;
Develop the product according to the required functions; if any issues arise during the development process, please contact our staff promptly;
Finalize the mass production solution for the end product.


 Usage Recommendations
Factors affecting ranging capability and accuracy include:
 Target reflectivity: Generally, the higher the target reflectivity, the better the ranging capability and the faster the response speed. For example, a target with medium reflectivity can be measured up to 1500m, while a low-reflectivity target may only be measurable up to 800m.
Measurement angle: When the laser beam is perpendicular to the target surface, the ranging capability is optimal and the response speed is fastest. Deviations from the perpendicular angle will degrade performance. Under extreme angles, the ranging capability and response speed specified in this manual cannot be guaranteed.
 Measurement environment: Additional factors affecting ranging capability and response speed include sunlight intensity, the concentration of water vapor and suspended particles in the air, and the angle of deviation from direct sunlight exposure.