TroubleshootingArduino

Dfplayer mini mp3 module send me an Error!

userHead Account cancelled 2022-01-24 19:12:03 706 Views1 Replies
Hello,

I want to know how accurate this turbidity sensor. According to my experience, he is quickly changing.
In addition, it doesn't give me 4.2 voltage in clear water. Maybe I have to open it and adjust the trimmer.
Please tell me your experiences.

Thank you in advance,