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Wiring:
- VCC: Connected to the Positive Power Supply 3.3-5V
- GND: Connects to the Negative Power Supply
- DO TTL Switch Signal Output
LDR Photosensitive Sensor Module
Features:
- Working Voltage: 3.3V-5V
- Output Format: Digital Switching Outputs (0 and 1)
- A Fixed Bolt Holes for Easy Installation
- PCB Size: 3.2cm x 1.4cm
- Wide Voltage LM393 Comparator
- Use A Sensitive Sensor Type Photoresistor
- The Comparator Output Signal is Clean, Good Waveform, Driving Ability, More than 15mA
- Adjustable Potentiometer to Adjust the Brightness of the Light Detection
Instructions:
- 1. Photosensitive Resistance Module is the Most Sensitive to Ambient Light, Which is Generally Used to Detect the Brightness of Ambient Light and Trigger Single-Chip Microcomputer or Relay Module, etc.
- 2. When the Ambient Light Brightness of the Module Fails to Reach the Set Threshold, the DO End Will Output High Level; When the Ambient Light Brightness Exceeds the Set Threshold, the DO End Will Output Low Level
- 3. DO Output Terminal Can Be Connected with the MCU Directly, Through the MCU to Detect the High and Low Level, So As to Detect the Change of Environmental Light Brightness
- 4. DO Output Can Drive the Store Relay Module Directly, Which Can Form a Light Control Switch
Fairly Critical
2025-05-05 18:04:15
Great little detector circuit. Worked perfectly for a strobe light frequency detector I made.
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