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LED Air Quality Meter #AdafruitIO #IoTuesday

From vincent wong on hackster.io:

This is a simple project using a MQ4 gas sensor, together with Netduino 3 WiFi. The LED light will turn on if the gas sensor’s value is above certain threshold. To ease my testing, I add a light sensor so that I can turn on and off the LED by changing the resistance.

Read more and see more on YouTube


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