Module features:

 

1. It can detect flames or light sources with wavelengths in the range of 760 nanometers to 1100 nanometers, lighters

The test flame distance is 80cm, the greater the flame, the farther the test distance

2. The detection angle is about 60 degrees, which is particularly sensitive to the flame spectrum

3. Sensitivity is adjustable (the blue digital potentiometer is adjusted in the picture)

4. Comparator output, clean signal, good waveform, strong driving ability, more than 15mA

5. Equipped with adjustable precision potentiometer to adjust sensitivity

6. Working voltage 3.3V-5V

7. Output form: DO digital switch output (0 and 1) and AO analog voltage output

8. Equipped with fixing bolt holes for easy installation

9. Small board PCB size: 3.2cm x 1.4cm

10. Use wide voltage LM393 comparator

 

Product wiring instructions:
 
1. Connect VCC to the positive pole of the power supply 3.3-5V
2. GND connects to the negative pole of the power supply
3. DO TTL switch signal output
4. AO small board analog signal output (voltage signal)

 

Module instructions:
 

1. The flame sensor is sensitive to flames and responds to ordinary light. It is generally used for flame alarms and other purposes.
2. The output interface of the small board can be directly connected to the IO port of the single-chip microcomputer
3. Keep a certain distance between the sensor and the flame to avoid high temperature damage to the sensor. The flame distance for the lighter test is 80cm. The larger the flame, the longer the test distance.
4. Small board analog output mode and AD conversion processing can obtain higher accuracy
5. When the sensor detects flame, sunlight, or infrared light, it must reach the threshold set by the potentiometer, the green indicator light will be on, DO and output low level (about 0-0.1V), the green indicator light does not On, DO outputs a high voltage level of about 3v