1 files changed, 11 insertions, 0 deletions
diff --git a/src/driver/ssd1306.cc b/src/driver/ssd1306.cc
index 69bd28c..23b938d 100644
--- a/src/driver/ssd1306.cc
+++ b/src/driver/ssd1306.cc
@@ -30,6 +30,17 @@ void SSD1306::init()
 	}
 }
 
+void SSD1306::setContrast(unsigned char contrast)
+{
+	writeCommand(SSD1306_SET_CONTRAST);
+	writeCommand(contrast);
+}
+
+void SSD1306::setInvert(bool invert)
+{
+	writeCommand(SSD1306_SET_NORM_INV | invert);
+}
+
 void SSD1306::showImage(unsigned char* data, uint16_t length)
 {
 	uint8_t i;