As I am building a shruthi 4-pole ( first project)
I have encountered some troubleshooting at step 11!
First, the encoder won’t show different led patterns;
but note first that it isn’t soldered yet because it seems that he has
two missing “legs” at the top. So, I am not able to know if the problem
comes from the missing parts or from the unsoldering ( which is why I don’t want
to solder it yet).
Second, the LCD doesn’t show any writing ( or anything else). I haven’t soldered it yet
but when I make it be in contact it reacts and shows normal brightness. I have turned the R21
trimmer clockwise and counterclockwise but nothing changed.
Did I burn something?
Thank you for your help and I hope some of you will be able to answer me in french,
because as you can see, english is not my first language!