Pressure Transducer

[Rhemsis]

Hello, I am new here, and I just had a quick question for anyone in the community.

I am looking to activate an LED based on airflow. When I drag, I want the LED to light up. I know some of these models have an active switch that does just that, but I am not using this for an Electronic Cigarette.

Basically my question is: What type of pressure transducer is used in most automatic e-cigarettes?

 

[Joseph112]

There are several types, the most reliable used on e-cigs is a microphone with a circuit board, it "hear" the airflow.

 

[Rhemsis]

Thank you for your reply.

Does anyone know the model of the microphone?

I'm looking for a model name or number so that I can purchase one without having to buy an e-cig

 

[JD1]

I think one of the Motorola microchips is often used because it's inexpensive and available. This link shows a 901. Hope it helps. Later, JD http://www.exogenesis.co.uk/DSE901.jpg