i try use sketch from https://hase85.wordpress.com/2013/09/25/16x2-lcd-spectrum-analyzer-plugin-for-winamp/ but it only display 2 col, and use lcd smartie but strange char appear
- What 16x2 display is that, pls post a picture showing the display connected to the Arduino
- Did you start with the simple “Hello World” sketch to make sure it works at all?
- pls post the whole sketch in code tags </>
I played with lcd smartie in the past. As far as I remember, after power up there is a garbage in the LCD CGRAM. You have to manually create custom chars to make it work.