diff --git a/img/diagram.c b/img/diagram.c
new file mode 100644
index 0000000..b0ffefc
--- /dev/null
+++ b/img/diagram.c
@@ -0,0 +1,96 @@
+// +---------------------------+
+// |       Display OFF         |
+// +---------------------------+
+// |           0xAE            |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |      Set MUX Ratio        |
+// +---------------------------+
+// |           0xA8            |
+// |     0x3F for 128x64       |
+// |     0x1F for 128x32       |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |  Set Memory Address Mode  |
+// +---------------------------+
+// |           0x20            |
+// |           0x00            |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |        Start Line         |
+// +---------------------------+
+// |           0x40            |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |     Set Display Offset    |
+// +---------------------------+
+// |           0xD3            |
+// |           0x00            |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |  Set Display Start Line   |
+// +---------------------------+
+// |          0x40             |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |     Set Segment Remap     |
+// +---------------------------+
+// |       0xA0 / 0xA1         |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |   Set COM Output Scan     |
+// |        Direction          |
+// +---------------------------+
+// |       0xC0 / 0xC8         |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |   Set COM Pins hardware   |
+// |       configuration       |
+// +---------------------------+
+// |        0xDA, 0x02         |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |   Set Contrast Control    |
+// +---------------------------+
+// |        0x81, 0x7F         |
+// +---------------------------+
+//              |
+// +---------------------------+
+// | Disable Entire Display On |
+// +---------------------------+
+// |          0xA4             |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |    Set Normal Display     |
+// +---------------------------+
+// |          0xA6             |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |    Set Osc Frequency      |
+// +---------------------------+
+// |       0xD5, 0x80          |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |    Enable charge pump     |
+// |        regulator          |
+// +---------------------------+
+// |       0x8D, 0x14          |
+// +---------------------------+
+//              |
+// +---------------------------+
+// |        Display On         |
+// +---------------------------+
+// |          0xAF             |
+// +---------------------------+
diff --git a/img/ssd1306.png b/img/ssd1306.png
new file mode 100644
index 0000000..4c89a83
Binary files /dev/null and b/img/ssd1306.png differ