2.4 Flame Sensor

The flame sensor detects the presence of fire or flame by sensing the infrared light emitted from flames. It outputs a digital or analog signal indicating whether a flame is detected.

Example Applications:

• Fire detection in safety systems
• Flame monitoring in industrial burners
• Automatic fire alarms

2.4.1 Example Code for the Flame Sensor

• Start by connecting the flame sensor to one of the available single-pin ports using the provided Type-C cable.
• Choose the corresponding pin on the controller to which the flame sensor is connected, for example, P0, P1, or P2.
• Drag a ScreenDisplay block to your workspace first.
• Next, drag the READ function block from the code blocks section and insert it inside the ScreenDisplay block.
• From the dropdown menu in the READ block:
  • Select flame as the sensor type.
  • Select the corresponding pin connected to your flame sensor (e.g., P0).
• This setup will:
  • Continuously monitor the presence of a flame.
  • Display a digital output indicating flame detection in real-time on the screen.

_{Figure 2.4.1a: Flame sensor reading displayed using block-based code}