What is Smoke Detector?

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2022-03-11 03:58:45 - Translate -

Why use a multimeter to detect that the VCC and GND of the MQ2 smoke sensor are short-circuited, and once the smoke sensor is connected to the minimum system board, when the power is not turned on, the VCC and GND are connected (it has been ruled out that the minimum system is not broken)
Introduction to smoke sensor: https://www.utmel.com/blog/categories/sensors/what-is-smoke-detector

Why use a multimeter to detect that the VCC and GND of the MQ2 smoke sensor are short-circuited, and once the smoke sensor is connected to the minimum system board, when the power is not turned on, the VCC and GND are connected (it has been ruled out that the minimum system is not broken) Introduction to smoke sensor: https://www.utmel.com/blog/categories/sensors/what-is-smoke-detector

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What is Smoke Detector? - Utmel

Hello everyone, I am Rose. Welcome back to the new post today. The smoke sensor detects whether or not there is smoke in the environment, as well as the concentration of smoke, such as sensing intense smoke during a fire. When the smoke probe comes into contact with smoke or another gas, its internal resistance changes, and an analog value is created to regulate it.

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