R50‑C Laser Range Sensor 3.5‑5.5V Long‑Distance Obstacle Avoidance Module Lightweight Laser Distance Measuring Unit For Robot

R50-C Laser Range Sensor (dToF 50m) 📌 Product Overview The R50-C laser range sensor is a brand-new laser ranging solution designed for drones, robotic vacuum cleaners and industrial robots. Based on the Direct Time of Flight (dToF) ranging principle, it features ultra-small volume, high measurement accuracy, superior performance and strong resistance to ambient light interference. The product supports both UART and I2C communication interfaces for transmitting distance data, is easy to use, flexible to install and convenient to expand. It is an ideal upgrade or replacement product for obstacle avoidance and altitude holding applications. ✨ Core Features

1. Direct Time of Flight (dToF) laser ranging principle
2. Ultra-small volume and lightweight design, only 6g net weight
3. Long measurement distance up to 50 meters
4. High measurement accuracy: ±2cm within 2 meters, ±2% beyond 2 meters
5. 100Hz high measurement frequency for real-time response
6. 905±5nm laser light source, FOV less than 2°
7. Strong ambient light interference resistance for outdoor use
8. Dual communication interface: UART (115200 baud) and I2C (up to 400K)
9. Compatible with major open-source flight controllers: PX4, INAV, ArduPilot
10. Compact housing with mounting ears for easy fixed installation

📋 Product Specifications

Item	Specification
Product Model	R50-C
Ranging Principle	Direct Time of Flight (dToF)
Measurement Range	50 meters
Measurement Accuracy	±2cm @ <2m, ±2% @ ≥2m
Measurement Frequency	100Hz
Light Source Wavelength	905±5nm
Field of View (FOV)	<2°
Measurement Blind Zone	5~10cm
Operating Voltage	3.5~5.5V
Power Consumption	≤60mA @ 5V
Operating Temperature	0~60℃
Storage Temperature	-20~70℃
Dimensions	28.5 × 13.6 × 21.4mm
Net Weight	6g
UART Baud Rate	115200
I2C Speed	up to 400K
Connector	SH1.0-4P Socket

📐 Dimension Info

• Overall size: 28.5 × 13.6 × 21.4mm
• Net weight: 6g
• Mounting hole diameter: Ø1.5mm
• Front panel width: 13.6mm, body length: 28.5mm
• Side height: 21.4mm, connector recess: 8.0 × 4.0mm

🔧 Pin Definition (SH1.0-4P) Pin order (left to right): TX(SCL) | RX(SDA) | 5V | GND

Pin	UART Mode	I2C Mode
1	GND (Ground)	GND (Ground)
2	VCC (5V)	VCC (5V)
3	RX (Serial Receive)	SDA (I2C Data)
4	TX (Serial Transmit)	SCL (I2C Clock)

⚠ Important Usage Notice

1. Supply voltage must be kept within 3.5V~5.5V to avoid module damage.
2. The measurement blind zone is 5~10cm; objects closer than this range cannot be measured accurately.
3. Keep the optical lens clean; dust or scratches will affect ranging accuracy.
4. Avoid direct strong sunlight into the lens during outdoor use.
5. I2C device address is 0x51 (7-bit); UART default baud rate is 115200.
6. The laser is Class 1 eye-safe, but do not stare directly into the emitting lens.

🛠 Application Scenarios

• Drone altitude holding and obstacle avoidance
• Robot vacuum cleaner navigation and collision avoidance
• Industrial robot distance detection
• High-speed measurement and safety monitoring in transportation
• Industrial automation distance sensing
• Smart home proximity detection
• Open-source flight controller (PX4 / INAV / ArduPilot) integration