This 5V sensor detects specific IR wavelengths and uses that to infer if there is a fire. There are both digital and analog outputs and a potentiometer to adjust the sensitivity.
This sensor is included in the HiLetgo 37 Sensors Assortment.
- Silkscreened as: HW-491
- Pins: 4
- Size:
Pins
| A0 | Analog Output |
| G | Ground |
| + | Positive Voltage. I’ve seen reference to using 5v for analog and 3.3v for digital. Will test/verify. |
| D0 | Digital Output |
Projects that use this: