Flame Sensor Circuit Diagram. You can run this project properly by making the circuit first identical to the circuit diagram shown in the figure above. 1 x flame sensor ky 026 1 x arduino uno r3 development board.
Connect the flame sensor and arduino uno r3 as shown in the image below. As you can see from the above image the vcc pin from sensor is connected to the 5v pin on the arduino the gnd pin from the sensor. This time i added the arduino uno.
Circuit diagram for the tutorial interfacing flame sensor with arduino is shown in the figure below.
Slp98uhv gas furnace installation manual lennox. The 12 volt dc power supply will be used to power up the arduino and relay module which is of the type spdt single pole and double throw it s a 12v relay. The following image shows the circuit diagram of a flame sensor. It is the most sensitive that can easily detect a fire and activate a fire alarm.
