The photosensitive resistance module to the ambient light is the most sensitive generally used to detect the surrounding environment of the brightness of the light, trigger SCM or relay module, etc. A module with ambient light brightness cannot reach the set threshold, DO end output a high level, when an external environment light brightness than setting a threshold value, the DO end output a low level. DO output port can be directly connected with the single-chip microcomputer, through the single-chip microcomputer to detect high and low levels, thus to the testing environment, light intensity change DO output end can directly drive the relay module, which can form a light-operated switch.
This LDR Module uses a high-quality LM393 voltage comparator. Easy to install using the sensitive type photosensitive resistance sensor the comparator output signal gives a clean and good waveform. Driving ability is 15mA with the adjustable potentiometer, it can adjust the brightness of the light. The working voltage is 3.3V to 5V. Where output is a digital switch output. Since this module is sensitive to light, usually used for detecting the ambient brightness and light intensity.
The core component of an LDR module is the Light Dependent Resistor (LDR) itself. This is a type of resistor that changes its resistance based on the amount of light falling on it. The resistance of an LDR decreases as the intensity of light increases. Conversely, its resistance increases as the light intensity decreases.
The LDR is typically used in conjunction with other resistors in a voltage divider circuit. This allows you to obtain a varying voltage signal that can be read by a microcontroller or other measuring device. The module provides an analogue output that corresponds to the light intensity. The voltage output is usually proportional to the amount of light falling on the LDR.
LDR modules are widely used in applications like automatic outdoor lighting systems, light intensity monitors, daylight sensors for electronic displays, and various industrial automation projects. The resistance of the LDR may change over time or be affected by environmental conditions. It’s important to factor this into the design of circuits using an LDR module.
Specifications
IC Chip
LM393
Operating Voltage
3.3 to 5V
Operating Current
15mA
Features
Light Sensing Precision-
The LDR Module is designed for precise light detection. Whether you’re creating a smart lighting system or a sun-tracking device, this module ensures accurate readings, allowing your projects to respond intelligently to changes in light levels.
Versatile Applications-
With its adaptable design, the LDR Module finds its place in a multitude of projects. From automated garden lighting to security systems, its sensitivity and reliability make it an invaluable component for any electronics enthusiast or professional.
Effortless Integration-
Featuring a user-friendly interface and clear documentation, the LDR Module is easy to set up and integrate into your projects. Whether you’re a seasoned developer or just starting out, you’ll appreciate the simplicity and efficiency it brings to your creations.
1 x LDR Module Light Sensor Module Photosensitive Light-Dependent Control Sensor Module
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