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1500m Micro Laser Rangefinder Module

The STA-D15X miniature laser ranging module uses a 905nm semiconductor laser, which has the characteristics of long range, low power consumption, small size, and eye safety. It is very suitable for integrating small unmanned aerial vehicle pods, handheld night vision devices, thermal imaging and other equipment. Max range:1500m Ranging accuracy: ± 1m Ranging frequency: Single-shot ranging,1Hz,2Hz Weight:5g ±0.5g

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Product Description

Key Features:

Semiconductor Laser Technology: Superior reliability, compactness and lower power consumption than traditional time-of-flight (TOF) rangefinders, enabling integration into portable and space-constrained devices.

Product performance index

Serial number	Project Name	STA-D15X
1	Human eye safety	Yes
2	Laser wavelength	905nm
3	Laser divergence angle	1×6mrad
4	Receiving field of view	~20mrad
5	Transmitter Caliber	Φ7mm
6	Receiving caliber	Φ7mm
7	Ranging range	5~1500m
8	Ranging accuracy	±1m
9	Measuring frequency	Single-shot ranging, 1Hz, 2Hz
10	Baud rate	115200bps (Default)/9600bps/38400bps/57600bps
11	Accuracy rate	≥98%
12	False alarm rate	≤1%
13	Data Interface	UART（TTL_3.3V）
14	Supply voltage	DC 3~5 V
15	Power consumption	Standby power ≤ 0.6WAverage ≤ 0.8W@1HzPeak value ≤ 1.3W@1Hz
16	Power consumption	Standby power ≤ 0.6WAverage ≤ 0.8W@1HzPeak value ≤ 1.3W@1Hz
17	Starting peak current	≤ 680mA
18	Leakage current	＜ 50uA
19	Weights	5±0.5g
20	Size（L×W×H）	≤22.5mm×16mm×9.5mm
21	Operating temperature	-20~＋60℃
22	Storage temperature	-30~＋60℃
23	Shock	1200g, 1ms
24	Vibration	5~50~5Hz, 1 octave/min, 2.5g
25	Reliability	MTBF≥1500h
26	Start-up time	≤100ms;
27	Electrical interface	Connector plug: 0.8WTB-6Y-2Connector socket: 0.8WTB-6AWB-01

Ranging 1500m,Data testing environment with visibility ≥ 25km and humidity ≤ 50%.

Module Composition

The main components of the laser rangefinder product are as follows:

a) Receiving and transmitting components;

b) Circuit components;22.5mm×16mm×9.5mm(L×W×H),the weight is ≤5g±0.5g, and its appearance is shown in Fig.1.

Figure 1 Product Appearance

Structure installation interface

The external dimensions of the mechanical and optical interfaces are shown in Figure 2.

Figure 2 Mechanical and optical interface diagram

Electrical interface

Power supply voltage: 3.3V (can be biased to 3.3V~5V);

Communication type: UART-TTL (3.3V);

Peak starting current: ≤ 680mA;

Standby power consumption: ≤ 0.6W;

Average power consumption: ≤ 0.8W@1Hz ；

Peak power consumption for distance measurement: ≤ 1.35W@1Hz ；

Leakage current: ＜ 50uA;

Power on ranging response time: ≤ 100ms

The upper computer end achieves cross-linking testing with the distance measuring machine end 0.8WTB-6AWB-01 connector (Yueqing Huabao) through the 0.8WTB-6Y-2 connector. The definitions of the power supply and communication port pins for the rangefinder are shown in the table below.

Table 2 Definition of Product Electrical Pin

Pin	Labeling	Electrical Characteristics Definition	Signal direction
1	Power-EN
2	TTL_RXD	Signal input port	Host computer to rangefinder
3	TTL_TXD	Signal output port	Rangefinder to host computer
4	NC
5	Power supply+
6	GND

Figure 3: 1 Pin

Electrical Connection Diagram

Module Communication

Communication Interface

Baud rate: 115200bps (default)/9600bps/38400bps/57600bps;

Single byte transmission format: includes 1 start bit, 8 data bits, no checksum, 1 stop bit, 8-bit data is transmitted first to the lower bit and then to the higher bit.

Single ranging instruction

Note: Sending verification code=Byte 3+Byte 4+Byte 5+Byte 6+Byte 7;

Receive checksum=Byte 1+Byte 2+Byte 3+Byte 4+Byte 5+Byte 6+Byte 7.

Send to the Ranging module:

byte	1	2	3	4	5	6	7	8
Description	0x55	0xAA	0x88	0xFF	0xFF	0xFF	0xFF	0x84

Ranging module returns

byte	1	2	3	4	5	6	7	8
Description	0x55	0xAA	0x88	status	0xFF	DATA_H	DATA_L	verification code

Status=0， Single measurement failed; DATA_H=0xFF，DATA_L=0xFF； status=1， Single measurement successful; DATAH_=high byte of measurement result; DATA_L=low byte of measurement result.

Continuous distance measurement instruction

Note: Sending verification code=Byte 3+Byte 4+Byte 5+Byte 6+Byte 7;

Receive checksum=Byte 1+Byte 2+Byte 3+Byte 4+Byte 5+Byte 6+Byte 7.

byte	1	2	3	4	5	6	7	8
Description	0x55	0xAA	Freq	0xFF	0xFF	0xFF	0xFF	verification code

Ranging module returns

byte	1	2	3	4	5	6	7	8
Description	0x55	0xAA	Freq	status	0xFF	DATA_H	DATA_L	verification code

Status=0， Continuous measurement failure; DATA_H=0xFF，DATA_L=0xFF； status=1， Continuous measurement successful; DATAH_=high byte of measurement result; DATA_L=low byte of measurement result.

Freq=0x89, 1Hz ranging; Freq=0xB9, 5Hz ranging; Freq=0xC9, 10Hz ranging; Freq=0xF9， Axis calibration mode (sends back the axis calibration status once after receiving the calibration command).