So it is very important to detect any gas leakage and prevent any accidents. When the output voltage is below that level, a green LED will be on. We have used the tinkercad online simulator to exhibit Smoke Alarm System using MQ2 Gas Sensor, Arduino UNO, ESP8266-01 WiFi module, Buzzer 1. It is designed for indoor use at room temperature. Smoke detection using gas sensor using tinkercadĢ561 The MQ-2 Gas sensor can detect or measure gasses like LPG, Alcohol, You can also use this sensor to get digital output from this pin, 6 เม.
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