cissy.christine
New Member
hi there.
ca someone please suggest a project that uses MQ2 sensor and arduino. thanks
ca someone please suggest a project that uses MQ2 sensor and arduino. thanks
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we tried using alcohol . the sensor's voltage had a very very small change . then when we try it again, the voltage remains the same.
If you have a 10 K pot you could place it across a 5 volt supply and connect the wiper of the pot to pin 0 (analog in of uC) vary the pot and watch the analog in voltage change. The LED string should follow the change.
Ron
Ron