KE4026 Keyes DIY Electronic Brick Photoresistor Sensor

**KE4026 Keyes DIY Electronic Brick Photoresistor Sensor**

**1. Introduction**
The Keyes 2021 New DIY Electronic Brick Photoresistor Sensor module is a highly sensitive sensor capable of detecting ambient light intensity changes. This module is widely used in automatic dimming, light monitoring, and smart devices related to light control.

**2. Features**
- **Eco-Friendly Material:** Manufactured with black eco-friendly materials compliant with modern safety standards.
- **High Sensitivity:** Capable of sensitively detecting light variations under different lighting conditions.
- **Anti-Reverse Interface:** Equipped with a green anti-reverse connector for secure and reliable connections.
- **Broad Compatibility:** Compatible with various microcontrollers (e.g., Arduino, Raspberry Pi) for practical applications.
- **Easy Installation:** Simple wiring design suitable for beginners and DIY projects.

**3. Specifications**
| Parameter | Description |
|-----------------|--------------------------------------|
| Model | KE4026 |
| Sensor Type | Photoresistor |
| Cable Length | 200mm |
| Operating Voltage | DC 5V |
| Interface Type | 2.54mm Pitch Anti-Reverse Interface |
| Resistance Range| 2-20KΩ (varies with light intensity) |
| Power Consumption| Approx. 20mA (at 5V operation) |

**4. Working Principle**
The photoresistor sensor operates by changing its resistance according to light intensity variations. The specific process is as follows:
- **Power Connection:** The module connects to a power supply via GND and VCC, supporting DC 5V operation.
- **Signal Output:** The sensor's resistance affects the output voltage. When light intensity increases, resistance decreases, causing analog signal output changes.

**5. Pin Description**
| Pin Name | Description |
|----------|---------------------------------------------------|
| VCC | Positive power supply connection (DC 5V input) |
| GND | Negative power supply connection |
| S | Analog output signal indicating light intensity changes |