diff --git a/readme.md b/readme.md
index 14d756b..37246ad 100644
--- a/readme.md
+++ b/readme.md
@@ -25,33 +25,33 @@ Wiring
 
 ![DB-25 Pinout](images/db25pins.jpg)
 
-| DB-25 Pins    | Arduino Pro Micro GPIO | ESP32 GPIO | Radio    | SNES   | PSX    | N64      | Gamecube | Genesis     |
-|---------------|------------------------|------------|----------|--------|--------|----------|----------|-------------|
-|  1  TX        |  1                     | 19         | -        | LATCH  | -      | -        | -        | P1-1        |
-|  2  SDA       |  2                     | 21         | -        | CLOCK  | DATA   | DATA1    | DATA1    | P1-3        |
-|  3  SCL       |  3                     | 22         | -        | DATA1  | CMD    | -        | -        | P1-4        |
-|  4  Analog    |  4                     | 15         | -        | DATA2  | ATT    | -        | -        | P1-6        |
-|  5  Digital   |  5                     | 16         | -        | DATA3  | CLK    | -        | -        | P1-7        |
-|  6  Analog    |  6                     |  2         | -        | DATA4  | -      | -        | -        | P1-9        |
-|  7  Digital   |  7                     | 17         | CE       | -      | -      | -        | -        | P2-7*       |
-|  8  Analog    |  8                     |  4         | CSN      | -      | -      | -        | -        | -           |
-|  9  Analog    |  9 > 1k Ω              | 35 > 1k Ω  | -        | 330 Ω  | 100 Ω  | 220 Ω    | 680 Ω    | 470 Ω       |
-| 10  Analog    | 10                     | 32         | -        | -      | -      | -        | -        | -           |
-| 11  RX        |  0                     | 18         | -        | -      | -      | -        | -        | P1-2        |
-| 12  -         | -                      | -          | -        | -      | -      | -        | -        | -           |
-| 13  -         | -                      | -          | -        | -      | -      | -        | -        | -           |
-| 14  MISO      | 14                     | 12         | MISO     | -      | -      | -        | -        | P2-6*       |
-| 15  SCLK      | 15                     | 14         | SCLK     | -      | -      | -        | -        | P2-9*       |
-| 16  MOSI      | 16                     | 13         | MOSI     | -      | -      | -        | -        | -           |
-| 17  -         | -                      | -          | -        | -      | -      | -        | -        | -           |
-| 18  Analog    | 18                     | 27         | -        | -      | -      | -        | -        | P2-1        |
-| 19  Analog    | 19                     | 26         | -        | -      | -      | -        | -        | P2-2        |
-| 20  Analog    | 20                     | 25         | -        | -      | -      | -        | -        | P2-3        |
-| 21  Analog    | 21                     | 33         | -        | -      | -      | -        | -        | P2-4        |
-| 22  -         | -                      | -          | -        | -      | -      | -        | -        | -           |
-| 23  3.3V VCC  | -                      | 3.3V VCC   | 3.3V VCC | -      | -      | 3.3V VCC | 3.3V VCC | -           |
-| 24  5V VCC    | 5V VCC OUT             | 5V VCC     | 5V VCC   | 5V VCC | 5V VCC | -        | 5V VCC   | PX-5 5V VCC |
-| 25  GND       | GND                    | GND        | GND      | GND    | -      | GND      | GND      | PX-8 GND    |
+| DB-25 Pins    | Arduino Pro Micro GPIO | ESP32 GPIO | Radio    | SNES    | PSX    | N64      | Gamecube | Genesis     | Dreamcast |
+|---------------|------------------------|------------|----------|---------|--------|----------|----------|-------------|-----------|
+|  1  TX        |  1                     | 19         | -        | LATCH   | -      | -        | -        | P1-1        | P1-DATA1  |
+|  2  SDA       |  2                     | 21         | -        | CLOCK   | DATA   | P1-DATA  | P1-DATA  | P1-3        | P1-DATA5  |
+|  3  SCL       |  3                     | 22         | -        | P1-DATA | CMD    | -        | -        | P1-4        | -         |
+|  4  Analog    |  4                     | 15         | -        | P2-DATA | ATT    | -        | -        | P1-6        | -         |
+|  5  Digital   |  5                     | 16         | -        | P3-DATA | CLK    | -        | -        | P1-7        | -         |
+|  6  Analog    |  6                     |  2         | -        | P4-DATA | -      | -        | -        | P1-9        | -         |
+|  7  Digital   |  7                     | 17         | CE       | -       | -      | -        | -        | P2-7*       | -         |
+|  8  Analog    |  8                     |  4         | CSN      | -       | -      | -        | -        | -           | -         |
+|  9  Analog    |  9 > 1k Ω              | 35 > 1k Ω  | -        | 330 Ω   | 100 Ω  | 220 Ω    | 680 Ω    | 470 Ω       | 820 Ω     |
+| 10  Analog    | 10                     | 32         | -        | -       | -      | -        | -        | -           | -         |
+| 11  RX        |  0                     | 18         | -        | -       | -      | -        | -        | P1-2        | -         |
+| 12  -         | -                      | -          | -        | -       | -      | -        | -        | -           | -         |
+| 13  -         | -                      | -          | -        | -       | -      | -        | -        | -           | -         |
+| 14  MISO      | 14                     | 12         | MISO     | -       | -      | -        | -        | P2-6*       | -         |
+| 15  SCLK      | 15                     | 14         | SCLK     | -       | -      | -        | -        | P2-9*       | -         |
+| 16  MOSI      | 16                     | 13         | MOSI     | -       | -      | -        | -        | -           | -         |
+| 17  -         | -                      | -          | -        | -       | -      | -        | -        | -           | -         |
+| 18  Analog    | 18                     | 27         | -        | -       | -      | -        | -        | P2-1        | -         |
+| 19  Analog    | 19                     | 26         | -        | -       | -      | -        | -        | P2-2        | -         |
+| 20  Analog    | 20                     | 25         | -        | -       | -      | -        | -        | P2-3        | -         |
+| 21  Analog    | 21                     | 33         | -        | -       | -      | -        | -        | P2-4        | -         |
+| 22  -         | -                      | -          | -        | -       | -      | -        | -        | -           | -         |
+| 23  3.3V VCC  | -                      | 3.3V VCC   | 3.3V VCC | -       | -      | 3.3V VCC | 3.3V VCC | -           | -         |
+| 24  5V VCC    | 5V VCC OUT             | 5V VCC     | 5V VCC   | 5V VCC  | 5V VCC | -        | 5V VCC   | PX-5 5V VCC | 5V VCC    |
+| 25  GND       | GND                    | GND        | GND      | GND     | -      | GND      | GND      | PX-8 GND    | GND       |
 
 * 2nd player Genesis is incompatible with Radio because it uses the same pins, 1 player Genesis is compatible
 Ω This is optional and only used for dongle detection. On the microcontroller side, put a 1k resistor between DB-25 pin 9 and VCC (3.3v for ESP32, 5V for Micro). On each controller dongle, put a resistor of the given value between DB-25 pin 9 and GND.
diff --git a/src/Dreamcast.cpp b/src/Dreamcast.cpp
new file mode 100644
index 0000000..ae49359
--- /dev/null
+++ b/src/Dreamcast.cpp
@@ -0,0 +1,26 @@
+/*
+      LOOKING AT THE PLUG ON FRONT OF CONSOLE (not coming from controller)
+
+               6
+     ---------------------
+     |         o         |
+     |                   |
+     |     1   3   5     |
+     |     o   o   o     |
+     |                   |
+      \      o   o      /
+       \     2   4     /
+        `-.         .-'
+            ~-._.-~
+
+   PIN # USAGE (colors from my extension cable, check your own)
+
+  1:  DATA1  - orange
+  2:  5V VCC - green
+  3:  GND    - white
+  4:  SENSE  - blue
+  5:  DATA5  - red
+  6:  GND    - grey
+
+  Connect both GNDs and SENSE together.
+*/