LRF300H · 905 nm LiDAR Distance Sensor
LRF300H UART wiring, pinout and serial protocol
The LRF300H talks UART, IIC and is powered from 9–36 V DC. Wire TX to the host RX, RX to the host TX, share ground, then send one of the commands below.
Electrical interface
| Parameter | Published value | Condition / note |
|---|---|---|
| Photobiological safety | Class 1 | Confirm against the controlled model document |
| Photobiological safety for indication | N/A | Confirm against the controlled model document |
| Supply voltage | 9–36 V DC | Confirm against the controlled model document |
| Interface | UART, IIC | Confirm against the controlled model document |
| Protection level | N/A | Confirm against the controlled model document |
| Wire specification | 1.25 mm, 5P, 50 cm stranded wires | Confirm against the controlled model document |
LRF300H serial commands
Frame header 5C, 4-byte frames, 460800 baud, 8N1. The full frame layout and checksum are in the protocol document of erdi-lrf-drivers.
Reading it from a computer
Open the port at the baud rate above, 8 data bits, no parity, 1 stop bit. The UART protocol decoder shows the frames live in a browser over WebSerial, and the erdi-lrf-drivers repository has Python, Arduino and ROS 2 readers for this frame format.
Ordering the LRF300H
The published single-unit price of the LRF300H is $280, falling to $140 per unit at the largest published quantity band. Prices include shipping and are ordered directly from erdilrf.com. Technical questions and quantity quotes: tommy@erdimail.com. Full specification table, downloads and ordering: LRF300H model page.
FAQ
What is the maximum range of the LRF300H?
The published range is 0.05–300 m (90% reflectivity); 0.05–100 m (10% reflectivity) (The two source values remain bound to their stated target reflectivity.). A range figure is only comparable together with the target and conditions it was measured on, so the condition is listed next to the value.
Which interface does the LRF300H use?
The published communication interface is UART, IIC.
What laser wavelength does the LRF300H use?
The published wavelength is 905 nm; laser safety entry: Class 1.
How much does the LRF300H cost?
The published single-unit price of the LRF300H is $280, falling to $140 per unit at the largest published quantity band. Prices include shipping and are ordered directly from erdilrf.com.
Related guides
- LRF300H datasheet and specifications
- LRF300H Pixhawk / ArduPilot setup
- LRF300H ROS 2 driver
- LRF300H Arduino library
- LRF300H Raspberry Pi Python reader
- LRF300H price and ordering
- LRF300H power supply and current
- LRF300H accuracy and range test conditions
- LRF300H dimensions and weight
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Model records
Open the model page for the full specification table, downloads, published price and ordering.