Add display inversion (#191)

Author: nico

CHANGELOG.md

@@ -6,6 +6,10 @@
 
 ## [Unreleased] - ReleaseDate
 
+### Added
+
+- [#190](https://github.com/jamwaffles/ssd1306/pull/190) Added `Ssd1306::set_invert` to invert the screen pixels
+
 ## [0.8.0] - 2023-06-01
 
 ### Added

src/lib.rs

@@ -383,6 +383,11 @@ where
         Command::PageStart(row.into()).send(&mut self.interface)
     }
 
+    /// Set the screen pixel on/off inversion
+    pub fn set_invert(&mut self, invert: bool) -> Result<(), DisplayError> {
+        Command::Invert(invert).send(&mut self.interface)
+    }
+
     fn flush_buffer_chunks(
         interface: &mut DI,
         buffer: &[u8],