You can see the picture of my work from this link [image] 238607 hosted at ImgBB Image 238607 hosted in ImgBB . . . I have some problem about this sensor because it can't show the real CO2 ppm, on the monitor it show like 12000 ppm or -5612 ppm but that i…

I got some problem about using MG-811 (CO2 Sensor)

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