- Descriptions
- Dimensions
- Specifications
- Applications
- Downloads
- Accessories
L1-40 is a board-level phase-shift laser distance module for embedded systems. The host product is responsible for power protection, EMC/ESD, mechanical fixation, and environmental sealing.
The module outputs distance frames via TTL UART for direct MCU/SoC integration. Protocol options (Modbus RTU / ASCII / HEX) reduce firmware adaptation effort across different control stacks.
Metrology: 1 mm resolution, ±1 mm repeatability, and an absolute accuracy model of ±(1 mm + D×0.5‰). Output rate selectable 10/20 Hz (default 20 Hz), suitable for real-time motion feedback.
This is not an IP-rated sealed sensor. For outdoor or harsh environments, use enclosure + optical window + harness strain relief at system level.
Application fields: AGV/AMR distance feedback, positioning reference, equipment travel/stroke monitoring, OEM embedded measurement modules.
Applications
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Embedded & OEM Integration
- Embedded control boards
- MCU / SoC based systems
- Industrial electronic modules
Automation & Robotics
- AGV / AMR distance feedback
- Position reference and motion control
- Equipment stroke and clearance monitoring
Industrial Electronics Environment
- Industrial cabinets and control boxes
- Systems requiring EMC-compliant components
- Integration inside customer-designed enclosures
Application Notes
- Designed primarily for embedded and indoor applications.
- For long-range measurement (especially 80 m), reflective targets improve accuracy and stability.
- Performance may be affected under strong outdoor sunlight.
- External housing or protection is recommended for harsh environments.
L1-40 Laser Distance Sensor Module (TTL) Specification
| Product | L1-40 Laser Distance Sensor Module |
| Measurement Principle | Laser distance measurement (650 nm spot laser) |
| Measurement Range | 0.03–40 m |
| Zero Reference Point | Front end |
| Resolution | 1 mm |
| Absolute Accuracy | ±(1 mm + D × 5‰), D = actual distance |
| Repeatability | ±1 mm |
| Sampling Rate | 10 Hz / 20 Hz (Default: 20 Hz) |
| Laser Wavelength | 650 nm |
| Optical Power | < 1 mW |
| Laser Class | Class 1 (Eye-safe) |
| Spot Type | Visible spot laser |
| Spot Size | < 5 mm @ 10 m |
| Optical Lifetime | Approx. 20,000 hours |
| Power Supply | DC 5 V |
| Power Consumption | 0.6 W @ 20 Hz; Standby < 0.2 W |
| System Startup Time | 600 ms |
| Output Interface | TTL UART |
| Baud Rate Options | 9600 / 19200 / 38400 / 115200 (Default: 38400) |
| Serial Format | 8 data bits, 1 stop bit, no parity, no flow control (8N1) |
| Protocol Support | Modbus-RTU / ASCII / Custom HEX |
| Operating Temperature | −10 °C to +50 °C |
| Operating Humidity | ≤ 85% RH |
| Cable Type | Aviation cable |
| Dimensions | 54.35 × 36.61 × 14.3 mm |
| Net Weight | 15.8 g |
| Gross Weight | 17.1 g |
MyAntenna phase-shift laser distance sensors operate based on optical measurement principles. Therefore, all application design and operational considerations should strictly follow the fundamental characteristics of light, including reflection, transmission, and related optical behaviors.
Under static measurement conditions against a white wall at a distance of 3 meters in an indoor environment, the phase-shift laser distance sensor achieves an accuracy of ±1 mm. The maximum measurement frequency is up to 20 Hz for TTL interface versions, while RS485 and analog 4–20 mA interface versions typically support a maximum data update rate of approximately 10 Hz.
The maximum supported measuring range is up to 80 meters, provided that a reflective target is installed at the measurement point.
Reducing the measurement range does not result in improved accuracy. In addition, different output interfaces provide different data transmission rates. In descending order of data speed, the interfaces are:
TTL > RS232 > RS485 > 4–20 mA analog current output.
| Dimensions |  |
|---|
| Measurement Range | 0.03–40m |
|---|---|
| Output Interface | TTL UART |
| Accuracy | ±1mm |
| Sampling Rate | 10Hz(10 times per second), 20Hz(20 times per second), default 20HZ |
| Power Supply | DC 5 V |
| Repeatability | ±1mm |
| Dismensions | 54.35 × 36.61 × 14.3 mm |
| Operating Temperature: | –10 °C to +50 °C |
| Operating Humidity | ≤85 % RH |
| Laser Wavelength | 650 nm |
| Communication Protocol | Modbus_RTU/ ASCII/Custom Hex |
| Power Consumption | 0.6W@20Hz, , standby <0.2W |
| System Startup Time | 600ms |
| Serial Port Format | Baud rate : 38400 Data bits : 8 Stop bits : 1 Verification : none Flow Control : none |
| Net Weight | 15.8 g |
| Gross Weight | 17.1g |
| Resolution | 1 mm |
| Applications | AGV / AMR Navigation, Deformation Monitoring, Displacement Measurement, Industrial Automation, Level Monitoring, Material Level Measurement, Smart Construction |
Powering Success: Bringing Client Innovations to Reality
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All Files
| Title | Upload Date | File Type | Action |
|---|---|---|---|
| MyAntennaRF_USB-to-TTL_RS232_Interface-Converter_User-Guide_v1.0_2024-03-12_EN-CN | 2026-01-05 | N/A | Download |
| MyAntennaRF_USB-to-TTL_RS232_Interface-Converter_User-Guide_v1.0_2024-03-12_EN-CN | 2026-01-05 | N/A | Download |
| Laser Distance Sensor Catalogue 2025 -MyAntenna | 2025-12-26 | N/A | Download |
| L4 Series Lser Distance Sensor User Manual 250220 | 2025-12-26 | N/A | Download |
| L2 Series Lser Daistance Sensor User Manual 250325 | 2025-12-26 | N/A | Download |
| L3 Series Lser Distance Sensor User's Manual 231129 | 2025-12-26 | N/A | Download |
| L2 Series - User Manuals | 2025-12-18 | N/A | Download |
| N1 Series User’s Manual 251112 | 2025-12-17 | N/A | Download |
| L1 Series Laser Distance Sensor -User Manual | 2025-12-17 | N/A | Download |
| L1 Series - Laser Distance Senosr User Manual | 2025-12-15 | N/A | Download |
| D1 Series User’s Manual 231205 | 2025-12-12 | N/A | Download |
