LCD 16*2 only the left side work!

Other Hardware Displays
1

I checked everything twice, only left side work!
anyone have this problem before!

2

narzan:
anyone have this problem before!

Yes, reported quite often here.
Display probably damaged but -

Post your code to be checked.

3

Thanks Paul__B :slight_smile: it's not necessary! it seems damaged Thanks again

4

This display has two chips ("blobs") driving it, the "master" HD44780 (or clone) control the left side and the "slave", the right.

If there is a connection failure between the two - which seems to happen from time to time - then the right hand side will not display, or display incorrectly.

I do not recall just now whether incorrect initialisation can cause the second chip not to operate, which is why I suggested reviewing the code setup.

5

I do not recall just now whether incorrect initialisation can cause the second chip not to operate, ....

I don't think so.

Don

6

I changed everything on that bourd nothing work, the left blob not working :slight_smile:
I changed the LCD to new one :slight_smile: