LRF0818C · 1535 nm Laser Rangefinder Module
LRF0818C UART wiring, pinout and serial protocol
The LRF0818C talks TTL and is powered from 4.5 V–16 V. 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 |
|---|---|---|
| Interface | TTL | |
| Supply voltage | 4.5 V–16 V |
LRF0818C pinout
| Pin | Signal | Note |
|---|---|---|
| P-1 | VIN+ | Power input, 4.5–16 V |
| P-2 | VIN- | Power ground (GND) |
| P-3 | POWER_ON | Module power enable (TTL, 3.3 V logic level); Module ON (> 2.7 V), module OFF (< 0.3 V) |
| P-4 | UART_TX | UART TXD (serial transmit), TTL, 3.3 V logic level |
| P-5 | UART_RX | UART RXD (serial receive), TTL, 3.3 V logic level |
| P-6 | GND | Serial ground (SGND) |
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 LRF0818C
The published single-unit price of the LRF0818C is $2,000, falling to $900 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: LRF0818C model page.
FAQ
What is the maximum range of the LRF0818C?
The published range is Vehicle (2.3 m × 4.6 m): ≥ 8,000 m Human (0.5 m × 1.7 m): ≥ 4,500 m (design guarantee) Small object (0.2 m × 0.3 m): ≥ 2,600 m (design guarantee). 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 LRF0818C use?
The published communication interface is TTL.
What laser wavelength does the LRF0818C use?
The published wavelength is 1535 nm ± 10 nm; laser safety entry: The source describes the module as 1535 nm eye-safe but does not state a numerical laser class in the reviewed specification. Wavelength alone is not a classification..
How much does the LRF0818C cost?
The published single-unit price of the LRF0818C is $2,000, falling to $900 per unit at the largest published quantity band. Prices include shipping and are ordered directly from erdilrf.com.
Related guides
Model records
Open the model page for the full specification table, downloads, published price and ordering.
- LRF0818C — LRF0818C 1535 nm Laser Rangefinder Module