SKU: SENS-3287
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Seeed Studio Studio Grove Light Sensor v1.2 - GL5528 Phototriode, Analog Output

₹279.00 (Inclusive of all taxes)
Out of Stock

The Seeed Studio Studio Grove Light Sensor v1.2 is an analog ambient light detection module featuring a high-sensitivity GL5528 phototriode (LDR) and onboard LM358 op-amp signal conditioning. It outputs a voltage proportional to light intensity, making it directly compatible with Arduino, Raspberry Pi, and other microcontroller analog inputs via the standardized Grove connector.

Features

  • Analog output voltage corresponds directly to ambient light intensity for easy microcontroller integration.
  • Features the high-sensitivity GL5528 phototriode with a peak spectral response at 540 nm.
  • Onboard LM358 operational amplifier provides stable, conditioned signal output.
  • Standard Grove 4-pin connector eliminates complex wiring for rapid prototyping.
  • Compact 20mm x 20mm PCB footprint with a 2mm mounting hole for secure installation.

Out of stock

Description

This Grove Light Sensor v1.2 utilizes a Light Dependent Resistor (LDR) as its core sensing element. The resistance of the GL5528 phototriode decreases non-linearly with increasing incident light intensity. An integrated LM358 dual op-amp circuit converts this variable resistance into a corresponding analog voltage signal, which is output via the Grove interface. The module is designed for reliable performance across a wide spectrum of light conditions, though it provides a relative light intensity trend rather than an absolute lux measurement.

Ideal for embedded systems and IoT projects, the sensor operates from a 3V to 5V DC supply, making it compatible with both 3.3V and 5V logic systems. Its quick response time and small form factor enable integration into space-constrained applications like smart home devices, environmental monitoring stations, and educational electronics kits.

Key Features

  • High-sensitivity GL5528 phototriode (LDR) with a peak wavelength of 540 nm.
  • Integrated LM358 operational amplifier for stable analog voltage output.
  • Standard 4-pin Grove connector for plug-and-play compatibility with Seeed Studio Studio ecosystem boards.
  • Wide operating voltage range of 3V to 5V DC for flexible system integration.
  • Fast response time of approximately 30 microseconds for dynamic light detection.
  • Compact and durable PCB design with a mounting hole for secure installation.
  • Optimized performance-to-cost ratio for educational and prototyping applications.

Applications

  • Automatic light-controlled switching for indoor/outdoor lighting systems.
  • Ambient light sensing for smart home automation and IoT devices.
  • Light intensity monitoring in plant growth and agricultural environments.
  • Daylight harvesting systems to optimize energy usage in buildings.
  • Educational projects for teaching analog sensor principles with Arduino or Raspberry Pi.

Technical Specifications

Model Name / NumberGrove Light Sensor v1.2
Sensing ElementGL5528 Phototriode (LDR)
Peak Response Wavelength540 nm
Output SignalAnalog Voltage
Operating Voltage3 V to 5 V DC
Operating Current0.5 mA to 3 mA
Response Time~30 µs
Onboard ICLM358 Dual Op-Amp
InterfaceGrove 4-pin Connector (Analog)
PCB Dimensions (L x W)20 mm x 20 mm
Mounting Hole Diameter2 mm
Weight4 g

Frequently Asked Questions

What is the output signal of this Grove Light Sensor?

The module outputs an analog voltage signal. The voltage level increases with higher ambient light intensity, providing a simple, linear representation for microcontroller analog-to-digital converters (ADCs). This allows for direct reading by platforms like Arduino or Raspberry Pi (with an ADC) to determine relative light levels.

What is the operating voltage range, and is it 5V or 3.3V logic compatible?

The sensor operates from a 3V to 5V DC power supply, making it fully compatible with both 3.3V and 5V logic systems commonly found on Arduino, ESP32, and Raspberry Pi boards. The analog output voltage will scale proportionally with the supplied VCC.

Does this sensor provide exact Lux or Lumen measurements?

No. This sensor provides a relative analog voltage output that trends with light intensity. It is not factory-calibrated to output precise Lux or Lumen values. For absolute light measurements, a dedicated digital lux sensor with calibration would be required.

How do I connect this sensor to my microcontroller?

Connect it using a Grove 4-pin cable. The yellow wire (signal) connects to an analog input pin on your controller (e.g., A0 on Arduino). The red and black wires are for VCC (3-5V) and GND, respectively. The blue wire is not used for this analog-only module.

Package Includes

  • 1 x Seeed Studio Studio Grove Light Sensor v1.2 Module

Additional Information

Weight 0.004 kg
Dimensions 2 × 2 cm