I just work on my project which is the air quality device, i upload the code and it run correctly at first. Then i make a some kind of mistake and the arduino have some problem, it smell like burned plastic and when i plug the nano in my computer it not connected but the power still on, from that time it like the data the sds011 sensor give my kinda crazy (Pm2.5 545.7 ug/m3 when the arduino was ok it like 50-60 ug/m3) . Can anyone explain me what happened to my arduino nano and why?
Thank you so much
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