3 pin flame sensor module blue

The 3‑pin flame sensor module is a compact infrared sensor designed to detect fire or flame sources. It is built on a blue PCB board and outputs a digital signal when a flame is detected. This makes it simple to interface with microcontrollers such as Arduino, ESP8266, ESP32, and Raspberry Pi for fire detection and safety applications.

🔹 Key Specifications

• Pins:
  • VCC → Power supply (3.3V–5V DC)
  • GND → Ground
  • DO → Digital output (HIGH/LOW signal when flame detected)
• Detection Range: Typically up to 80–100 cm (depends on flame size and module quality)
• Detection Angle: ~60° cone angle
• Wavelength Sensitivity: 760 nm – 1100 nm (infrared light emitted by flames)
• Indicator LEDs: Power LED and status LED for detection indication
• Board Color: Blue PCB (common design variant)

🔹 Features

• Simple 3‑pin Interface: Easy to connect and use.
• Digital Output: Direct HIGH/LOW signal for flame detection.
• High Sensitivity: Detects small flame sources within range.
• Compact Design: Small PCB size for embedded projects.
• Visual Indicators: LEDs show power and detection status.

🔹 Applications

• Fire alarm and safety systems
• Flame‑detecting robots (fire‑fighting robots)
• Industrial safety monitoring
• Educational electronics projects
• DIY automation and IoT projects

✅ In summary: The 3‑pin flame sensor module (blue PCB) is a simple, low‑cost sensor that detects infrared light from flames and provides a digital output signal, making it ideal for fire detection, robotics, and safety monitoring projects.