The TFmini-i is an industrial-grade single-point LiDAR sensor with a maximum detection range of 12 m. It uses Pulse Time of Flight (PTOF) measurement — emitting a narrow laser pulse and calculating the distance based on the round-trip time of the reflected signal.

Housed in a rugged PC/ABS/PMMA enclosure rated IP65 for dust and water resistance, it's designed for demanding environments. The sensor supports 7–30 V input with reverse polarity protection, communicates via RS-485 using the standard Modbus protocol, and offers an adjustable frame rate up to 1 kHz. Compatible with Arduino (via TTL-to-RS485 shield) and Raspberry Pi (via USB-to-RS485 module).

Key Features

• 12 m Range – Up to 12 m at 90% reflectivity, 7 m at 10% reflectivity
• IP65 Rated – Industrial-grade dust and water resistance
• RS-485 Interface – Standard Modbus protocol communication
• Wide Input Voltage – 7–30 V with reverse polarity protection
• Adjustable Frame Rate – Default 100 Hz, configurable up to 1 kHz
• 1 cm Resolution – Fine distance measurement precision
• Eye-Safe Laser – Class 1 (EN 60825)
• Multiple Operating Modes – Configurable parameters for different applications

Specifications

• Operating Range – 0.1–12 m (90% reflectivity), 0.1–7 m (10% reflectivity)
• Accuracy – ±6 cm (0.1–6 m), ±1% (6–12 m)
• Distance Resolution – 1 cm
• Frame Rate – 100 Hz (default), up to 1 kHz
• Ambient Light Immunity – 70 Klux
• Light Source – VCSEL, 850 nm
• Field of View – 2°
• Supply Voltage – 7–30 V
• Average Current – ≤65 mA at 12 V
• Power Consumption – ≤0.8 W at 12 V
• Interface – RS-485 (Modbus)
• Dimensions – 50 × 34 × 41 mm
• Weight – 52 g
• Cable Length – 70 cm
• Operating Temperature – –20 to 60 °C
• Storage Temperature – –30 to 75 °C
• Enclosure – PC/ABS/PMMA, IP65

Ideal For

• Vehicle and pedestrian detection
• Collision avoidance and safety warning systems
• UAV assisted takeoff and landing
• Altimeters and distance measurement

Package Contents

• 1× TFmini-i LiDAR Laser Range Sensor

Resources

• Product Wiki (DFRobot)