905nm Laser Rangefinder Module 2km
DESCRIPTION
Leveraging Time-of-Flight (TOF) technology, this 905nm laser ranging module realizes high-precision distance measurement through calculating the round-trip travel time of laser beams. It offers a measurement range spanning 5 to 2000 meters and comes equipped with a UART (TTL_3.3V) interface, supporting both single-shot and continuous ranging functions.
TECHNICAL SPECIFICATIONS
| Performance Indicators | |
|
Eye safety class |
Class 1(IEC 60825-1) |
|
Laser wavelength |
905±10nm |
|
Laser divergence angle (typical) |
3×6mrad |
|
Average laser power |
8.43mW |
|
Laser pulse width |
40ns |
|
Receiver field of view |
~8mrad |
|
Maximum range (Visibility ≥ 6Km) |
≥2000m @70% reflectivity, building targets |
|
Minimum range |
5m |
|
Ranging accuracy (Construction target) |
d≤200m:±0.7m d>200m:±（0.7+0.0004*d）m (d represents distance, in meters) |
|
Measurement frequency |
1~3Hz |
|
Accuracy rate |
≥98% |
|
False alarm rate |
≤1% |
| Electrical Specifications | |
|
Baud rate |
15200bps (factory setting)/57600bps/38400bps/9600bps |
|
Interface type |
UART(TTL_3.3V) |
|
Supply voltage |
DC 3.3±0.1V |
| Standby power consumption |
≤0.5mW (Power on pulled low) |
|
≤0.35W (Power on pulled high) |
|
|
Operating power consumption (+3.3Vin) |
≤1.5W@25℃ |
|
≤1.75W@70℃ |
|
|
≤1.38W@-20℃ |
|
|
Startup time |
≤550ms |
| Physical characteristics | |
|
Weight |
11±0.5g |
|
Dimensions |
26×25×14.5mm(L×W×H) |
|
Shock |
1200g,1ms |
|
Vibration |
5~50~5 Hz, 1 octave/min, 2.5g |
| Environmental adaptability | |
|
Operating temperature |
-20～+70℃ |
|
Storage temperature |
-25～+75℃ |
|
Reliability |
MTBF≥1500h |
Note: Visibility refers to visibility in fog and haze weather, and the impact is greater in sandstorm weather.
OUTLINE DIMENSION(mm)
Mechanical Interface and Center of Mass Position
Structural Installation
The recommended dimensions of the mounting bracket are as follows:
Installation Diagram:
The thread length of the countersunk head screw must not exceed 3.5mm.
PIN INTERFACE
Interface Definition
Interface Type: UART (TTL_3.3V)Connector Model: HC-0.8-6PWT
|
Pin |
Definition |
Description |
Color |
|
|
1 |
GND |
Ground wire |
Green |
|
|
2 |
Power Supply |
3.3V DC power supply |
Yellow |
|
|
3 |
NC |
No connection (NC) |
Orange |
|
|
4 |
TTL_TXD |
Serial port transmitter, TTL_3.3V level |
Red |
|
|
5 |
TTL_RXD |
Serial port receiver, TTL_3.3V level |
Brown |
|
|
6 |
Enable Pin |
Low level to power on |
Black |
