1. Introduction
The Keyes 2021 new DIY electronic building block photoresistor sensor module is a highly sensitive sensor capable of detecting changes in ambient light intensity. This module is widely used in automatic dimming, light monitoring, and light-related smart devices.
2. Features
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Environmentally friendly materials : Made of black environmentally friendly materials that meet modern safety standards.
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High sensitivity : It can sensitively detect changes in light and is suitable for different light source conditions.
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Anti-reverse insertion interface : Equipped with green anti-reverse insertion terminals to ensure a safe and reliable connection.
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Wide compatibility : Compatible with a variety of microcontrollers (such as Arduino, Raspberry Pi, etc.), facilitating practical applications.
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Easy to install : Simple wiring, suitable for beginners and various DIY projects.
3. Specifications
|
parameter |
describe |
|---|---|
|
model |
KE4026 |
|
Sensor type |
Photoresistor |
|
Wire length |
200mm |
|
Operating voltage |
DC 5V |
|
Interface type |
Anti-reverse interface with a spacing of 2.54mm |
|
Photosensitive range |
2-20KΩ (affected by light intensity) |
|
Power consumption |
Approximately 20mA (when operating at 5V) |
4. Working Principle
The photoresistor sensor's resistance changes according to variations in light intensity. The specific steps are as follows:
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Power connection : The module is connected to the power supply via GND and VCC, and supports DC 5V operation.
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Signal output : The resistance value of the sensor affects the output voltage. When the light intensity increases, the resistance decreases, and the analog signal output changes.
5. Foot position description
|
Pin Name |
describe |
|---|---|
|
VCC |
Connect the positive power supply terminal; supports DC 5V input. |
|
GND |
negative power connection |
|
S |
The analog output signal represents the change in light intensity. |