Summary of Arduino Modules – Flame Sensor
This article provides a quick start guide for using a Flame Sensor module with an Arduino. It describes the sensor's working principle, pins, and specifications, as well as how to test and troubleshoot it. The sensor detects infrared light from flames within about 3 feet range, giving analog (A0) and digital (D0) outputs. Instructions for wiring the sensor to an Arduino are also included, highlighting connections for power, ground, and analog input.
Parts used in the Flame Sensor Arduino Project:
- Flame Sensor (analog output model)
- Male to Female jumper wires
- Arduino (any model)
- Lighter or flame source for testing
Quick and simple start guide for using and exploring the Flame Sensor module with an Arduino.
The model in the example I am using is from Deal Extreme [DX] and can be found HERE.
(The instructable for the Rain Sensor is now available!)
Materials needed:
- Flame Sensor (model with an analog out)
- Male to Female jumper wires
- An Arduino, any flavor.
- Lighter or another flame source for testing.
Step 1: Getting to know your Flame Sensor:
Usage:
These types of sensors are used for short range fire detection and can be used to monitor projects or as a safety precaution to cut devices off / on.
Range:
I have found this unit is mostly accurate up to about 3 feet.
How it works:
The flame sensor is very sensitive to IR wavelength at 760 nm ~ 1100 nm light.
Analog output (A0): Real-time output voltage signal on the thermal resistance.
Digital output (D0): When the temperature reaches a certain threshold, the output high and low signal threshold adjustable via potentiometer.
Pins:
VCC…… Positive voltage input: 5v for analog 3.3v for Digital.
A0………. Analog output
D0……… Digital output
GND….. Ground
Dimensions:
1.18 in x 0.59 in x 0.20 in (3.0 cm x 1.5 cm x 0.5 cm)
Weight:
0.28 oz (8 g)
Step 2: Testing and Troubleshooting:
Testing:
To test the Flame Sensor and ensure that it is working correctly connect the VCC to a 5v power source and GND. Move a flame source with in a foot of the front of the Ir sensor and the D0-LED should light up.
Troubleshooting:
If the D0-LED does not light up check the following:
- Is the power source 5v?
- Is the ground hooked up?
- Is the flame with in 1 foot and in Line of Sight?
If none of the previous makes the D0-LED light up, your sensor may be defective.
Step 3: Wiring to an Arduino:
To wire the Flame Sensor to the Arduino simply connect the following as shown:
Flame sensor …………… Arduino
VCC…………………………. 5v
GND………………………….GND
A0……………………………. Analog in 0
For more detail: Arduino Modules – Flame Sensor
