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Description
Features:
| CATEGORY | SPECIFICATIONS |
|---|---|
| Product Type | LM393 Photoresistor Light Intensity Sensor Module |
| Sensor Type | Light Dependent Resistor (LDR / photoresistor) |
| Main Chip | LM393 voltage comparator |
| Function | Detects ambient light intensity and outputs digital signal |
| Operating Voltage | 3.3 V – 5 V DC |
| Output Type | Digital switch output (DO: 0/1) |
| Signal Behavior | High or low output depending on light threshold |
| Adjustability | Built-in potentiometer for sensitivity/threshold adjustment |
| Detection Method | Light intensity compared against set threshold |
| Output Drive Capability | Strong drive ability (>15 mA) |
| Key Feature | Adjustable light sensitivity with clean digital output |
| PCB Size | 3.2 cm × 1.4 cm |
| Mounting Type | Fixed bolt hole for easy installation |
| Operating Principle | Light intensity → LDR resistance change → LM393 comparison → digital output |
| Output Logic | DO HIGH when light below threshold, DO LOW when above threshold |
| Integration | Direct interface with microcontrollers and relay modules |
| Application Mode | Light-activated switching and automation systems |
| Applications | Smart lighting, light-activated switches, smart cars, automation control systems |
| Advantage | Easy threshold control, strong output drive, simple digital interface |
Package Includes:
1 x Photoresistor Light Detection Sensor
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