LRF100H · 905 nm LiDAR Distance Sensor
LRF100H on Raspberry Pi: Python UART reader
A Raspberry Pi reads the LRF100H through /dev/serial0 at 460800 baud. The erdi-lrf package on PyPI decodes the frames; the Pi repository adds a CSV logger, an MQTT publisher and a systemd service.
Enable the UART
Run sudo raspi-config → Interface Options → Serial Port: login shell off, serial hardware on. Wire LRF100H TX → GPIO15 (RXD), RX → GPIO14 (TXD), GND → GND. The Pi UART is 3.3 V; the published interface is UART, IIC.
Read a distance
pip install erdi-lrf pyserial
python - <<'EOF'
from erdi_lrf import ErdiLRF
lrf = ErdiLRF('/dev/serial0', baud=460800, model='LRF100H')
print(lrf.read_single()) # metres
EOFLogging, MQTT and a service
erdi-lrf-raspberry-pi-python has a CSV logger, an MQTT publisher, a MAVLink bridge and a systemd unit that starts the reader at boot.
Ordering the LRF100H
The published single-unit price of the LRF100H is $200, falling to $80 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: LRF100H model page.
FAQ
What is the maximum range of the LRF100H?
The published range is 0.05–100 m (90% reflectivity); 0.05–30 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 LRF100H use?
The published communication interface is UART, IIC.
What laser wavelength does the LRF100H use?
The published wavelength is 905 nm; laser safety entry: Class 1.
How much does the LRF100H cost?
The published single-unit price of the LRF100H is $200, falling to $80 per unit at the largest published quantity band. Prices include shipping and are ordered directly from erdilrf.com.
Related guides
- LRF100H datasheet and specifications
- LRF100H UART wiring, pinout and protocol
- LRF100H Pixhawk / ArduPilot setup
- LRF100H ROS 2 driver
- LRF100H Arduino library
- LRF100H price and ordering
- LRF100H power supply and current
- LRF100H accuracy and range test conditions
- LRF100H dimensions and weight
- UART laser rangefinder modules
- I2C laser rangefinder modules
- 905 nm laser rangefinder modules
- Class 1 laser rangefinder modules
- security and perimeter monitoring laser rangefinder modules
- industrial and level measurement laser rangefinder modules
Model records
Open the model page for the full specification table, downloads, published price and ordering.