DFRobot
RS485 Waterproof Ambient Light Sensor (0-200,000 Lux)
· MPN: SEN0644
Introduction The Waterproof Digital Ambient Light Sensor is a durable and versatile device designed to measure light intensity from 0 to 200,000 Lux. It util...
Introduction
The Waterproof Digital Ambient Light Sensor is a durable and versatile device designed to measure light intensity from 0 to 200,000 Lux. It utilizes the Modbus-RTU 485 communication protocol and operates on a DC 5-32V power supply, ensuring seamless integration with systems like Arduino via compatible expansion boards. With an IP68 waterproof rating, it can withstand complete submersion, making it ideal for both indoor and outdoor applications, including weather stations, greenhouses, outdoor lighting, and automotive smart lights. Its high accuracy (±5%), broad measurement range, and robust construction make it a reliable solution for demanding environments.
IP68 Waterproof Design
Built to withstand harsh conditions, the sensor meets the IP68 standard, allowing full submersion without damage. This makes it suitable for weather stations, greenhouses, and automotive applications, ensuring reliable performance in wet or humid environments.
Wide Range and High Accuracy
With a measurement range of 0-200,000 Lux and a resolution of 0.01 Lux, the sensor delivers precise light intensity readings across diverse conditions, from dim indoor spaces to bright outdoor settings. Its ±5% accuracy ensures dependable data for applications like plant growth monitoring and lighting control.
Easy Integration and Compatibility
Supporting the Modbus-RTU 485 protocol, the sensor integrates easily with Arduino and other microcontrollers using expansion boards like the TTL to RS485 module or the Gravity: Active Isolated RS485 to UART Signal Adapter. Its simple wiring and wide voltage range (DC 5-32V) provide flexibility for various setups.
Applications
- Weather Stations: Measure ambient light for accurate weather data collection.
- Greenhouses: Optimize plant growth by monitoring light intensity.
- Outdoor Lighting: Automate streetlights or garden lighting based on ambient brightness.
- Automotive Smart Lights: Enhance vehicle safety with adaptive lighting systems.
- Factory Lighting: Maintain optimal lighting conditions in industrial settings.
Specification
- Power Supply: DC 5-32V
- Working Current: ＜10mA
- Output Mode: RS485 (Modbus-RTU)
- Measurement Range: 0-200,000 Lux
- Resolution: 0.01 Lux
- Accuracy: ±5%
- Operating Temperature: -40°C to +80°C
- Protection Level: IP68
- Thread Length: 10mm
- Opening Size: 25mm
- Wrench Size: 33mm
- Cable Diameter: 4-10mm
- Cable Length: 1m
Shipping List
- RS485 Waterproof Ambient Light Sensor (0-200,000 Lux) x1
Jargon buster
Plain-language definitions for the technical terms used above.
- Ambient light sensor
- A sensor that measures the general brightness of light falling on it, similar to how a device can adjust screen brightness automatically. It matters when you want a project to react to room lighting, daylight, shadows, or covered/uncovered conditions.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- lux
- Lux is the standard unit for measuring how much light falls on a surface, similar to how a light meter reports brightness. A sensor that outputs lux gives readings that are easier to compare between rooms, outdoor conditions, and different projects.
- Modbus
- Modbus is an industrial communication protocol used by many meters, sensors, PLCs, and automation devices. Modbus support matters because it can make the controller easier to integrate with existing industrial equipment.
- ModBus-RTU
- ModBus-RTU is a common industrial protocol for sending sensor readings and control commands over serial links such as RS485. Knowing the sensor uses ModBus-RTU helps you choose software libraries, data loggers, or controllers that can request and interpret its readings.
- RS485
- RS485 is a robust wired serial communication standard often used in factories, farms, and buildings where cables may be long or electrically noisy. It matters because it lets this controller connect to industrial sensors, meters, and control equipment over longer distances than typical hobby serial wiring.
- Thread
- A low-power wireless mesh networking standard designed for smart home and IoT devices. It matters because Thread devices can relay messages through each other, helping build reliable networks for sensors and controllers.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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Sensors & Input
Supplier page — dfrobot.com
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