SPD1200H2 905nm Micro Laser Rangefinder Module
DESCRIPTION
It offers a range of 0.2–1200m, with a maximum range of 1500m at night. It supports 2–15Hz adaptive UART-TTL output, operates at 3.3–5V, has an average power consumption of approximately 0.45W and a maximum power consumption of ≤0.75W, a package size of Ø17 × 28.2mm, a weight of ≤6g, and an IP67 lens cavity protection rating.
TECHNICAL SPECIFICATIONS
|
No. |
Parameter |
Specification |
|
1 |
Laser Wavelength |
905 nm ± 5 nm |
|
2 |
Laser Beam Divergence |
< 6 mrad |
|
3 |
Optical Material |
PMMA |
|
4 |
Receiving Aperture |
5.0mm × 7mm |
|
5 |
Measurement Range |
0.2 m – 1200 m Note: The measurement range may be reduced under strong sunlight or low-visibility conditions. |
|
6 |
Ranging Accuracy |
±0.3m (≤100m) ±0.3m+d*0.7‰ (100m<d<1200m) |
|
7 |
Measurement Frequency |
2 Hz – 15 Hz Adaptive |
|
8 |
Measurement Accuracy Rate |
≥ 98% |
|
9 |
False Alarm Rate |
≤ 1% |
|
10 |
Communication Interface |
UART-TTL (Customizable) |
|
11 |
Baud Rate |
Default 115200 bps |
|
12 |
Supply Voltage |
3.3 V – 5 V |
|
13 |
Startup Time |
≤ 200 ms |
|
14 |
Operating Power Consumption |
Average Power Consumption ≈ 0.45 W Maximum Power Consumption ≤ 0.75 W |
|
15 |
Operating Temperature |
-20°C to +60°C |
|
16 |
Storage Temperature |
-30°C to +70°C |
|
17 |
Protection Rating |
IP67 (Inside Lens Cavity) |
|
18 |
Laser Safety Class |
IEC Class I |
|
19 |
Dimensions |
Ø17 mm × 28.2 mm (Square Housing) |
|
20 |
Weight |
≤ 6 g |
|
21 |
Shock Resistance |
1000 g/ms (10 times/s along optical axis) |
|
22 |
Vibration Resistance |
5–50–5 Hz, 1 octave/min, 2.5 g |
|
23 |
Reliability |
MTBF ≥ 1500 h |
Functional Description
The system supports single measurement and continuous measurement functions.
3.1 External Circuit Enable
Enables the module for normal operation.
3.2 External Circuit Disable
Disables the external circuit to reduce power consumption.
3.3 Single Measurement
Triggers a single distance measurement to the target. For low-reflectivity targets, the system automatically repeats measurements until stable distance data is obtained. The result is then transmitted via the serial interface in the standard data format.
3.4 Continuous Measurement
In continuous measurement mode, the laser module performs repeated distance measurements on the target. The typical refresh rate can be set to 2 Hz, and the maximum refresh rate can reach 15 Hz.
Electrical Interface Definition
|
Pin |
Definition |
Description |
|
1 |
SW-SHOT |
Function Enable (active high) Note: Compatible with active-low control requirements |
|
2 |
RXD |
Signal input port, Host → Ranging Module |
|
3 |
TXD |
Signal output port, Ranging Module → Host |
|
4 |
I/O (Reserved) |
Reserved for expansion |
|
5 |
VCC |
Power + |
|
6 |
GND |
Power − |
Mechanical Interface
