diff --git a/README.md b/README.md
index 6d8c81f..77600b9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,68 @@
+# CMDR keyboard 51
+
+![image](mCAD/cmdr-keyboard-51-v1.png)
+
+## Layout
+
+```cpp
+ Layer 0
+ ---------------------------------------------     ---------------------------------------------
+ |  Tab  |  Q  |  W  |  E  |  R  |  T  |  F1 |     |  F4 |  Y  |  U  |  I  |  O  |  P  |   Å   |
+ | LCtrl |  A  |  S  |  D  |  F  |  G  |  F2 |     |  F5 |  H  |  J  |  K  |  L  |  Ö  |   Ä   |
+ | Shift |  Z  |  X  |  C  |  V  |  B  |  F3 |-----|  F6 |  N  |  M  |  ,  |  .  |  -  | Shift |
+ --------------------| Alt | Fn  | Spc | BSpc| Gui |Enter| Spc | Fn  |AG+Fn|--------------------
+                     -------------------------------------------------------
+ Layer 1 (Fn)
+ ---------------------------------------------     ---------------------------------------------
+ |  Esc  |  F1 |  F2 |  F3 |  F4 |  F5 |  F1 |     |  F4 |  F6 |  F7 |  F8 |  F9 | F10 |       |
+ | LCtrl |  1  |  2  |  3  |  4  |  5  |  F2 |     |  F5 |  6  |  7  |  8  |  9  |  0  |       |
+ | Shift |  6  |  7  |  8  |  9  |  0  |  F3 |-----|  F6 |  <  |  ´  |  '  |  ¨  |  +  | Shift |
+ --------------------| Alt | Fn  | Spc | BSpc| Gui |Enter| Spc | Fn  |AG+Fn|--------------------
+                     -------------------------------------------------------
+ Layer 2 (Fn + Fn)
+ ---------------------------------------------     ---------------------------------------------
+ |  F11  | F12 | F13 | F14 | F15 | F16 |  F1 |     |  F4 |  §  |GuiLK|     |     | CpLk|       |
+ | LCtrl |     |     | F17 | F18 | F19 |  F2 |     |  F5 | Left| Down| Up  |Right| Del |       |
+ | Shift | F20 | F21 | F22 | F23 | F24 |  F3 |-----|  F6 | Home| PgD | PgU | End | Ins | Shift |
+ --------------------| Alt | Fn  | Spc | BSpc| Gui |Enter| Spc | Fn  |AG+Fn|--------------------
+                     -------------------------------------------------------
+```
+
+## Features
+
+- 51 keys "Split" keyboard layout. 36 finger buttons and 9 thumb buttons and 6 function buttons.
+- Extreme low profile (only one pcb).
+- Cost efficient solution with one pcb and one 3D printed cover.
+- Function keys with total of three layer support (Primary + 2fn layers).
+- Status indication -
+  - LED off = Normal mode
+  - LED flashing = Caps Lock activated
+  - LED on = Gui key lock activated
+
+## Build environment rp2040 Zero
+
+Rust embedded, rp2040 HAL
+
+- Cargo (cargo.toml)
+- Flashing via rp2040 USB bootloader
+  - Pressing reset/boot button on rp2040 Zero board
+  - Pressing all four corners on the keyboard
+
+## Hardware
+
+[Schematics](build/cmdr_mainboard_v1.pdf)
+
+- 1x rp2040 Zero
+- 45x Cherry MX compatible switches
+- 6x Kailh Choc low profile switches
+- 51x 1N4148 diodes
+- 1x PCB [Gerber files](build/cmdr_mainboard_51_gerber_v1.zip)
+- 1x MCU cover (optional) [STL file](build/cmdr_keyboard_51_Cover.stl)
+- 1x 6x3 Cherry MX mounting jig (optional) [STL file](build/cmdr_mounting_jig-MountingJig.stl)
+
 # CMDR keyboard 42
 
+![image](mCAD/cmdr-keyboard-42-v1_photo.jpg)
 ![image](mCAD/cmdr-keyboard-42-v1_photo_2.jpg)
 
 ## Layout
@@ -14,17 +77,17 @@
                      -------------------      -------------------
  Layer 1 (Fn)
  ---------------------------------------      ---------------------------------------
- |  Esc  |  F1 |  F2 |  F3 |  F4 |  F5 |      |  F6 |  F7 |  F8 |  F9 | F10 |       |
- | LCtrl |  1  |  2  |  3  |  4  |  5  |      |  6  |  7  |  8  |  9  |  0  |       |
+ |  Esc  |  F1 |  F2 |  F3 |  F4 |  F5 |      |  F6 |  F7 |  F8 |  F9 | F10 |  BSpc |
+ | LCtrl |  1  |  2  |  3  |  4  |  5  |      |  6  |  7  |  8  |  9  |  0  | Enter |
  | Shift |  6  |  7  |  8  |  9  |  0  |      |  <  |  ´  |  '  |  ¨  |  +  | Shift |
- --------------------| Alt | Fn  | BSpc|      |Enter| Fn  |AG+Fn|--------------------
+ --------------------| Alt | Fn  | Spc |      | Gui | Fn  |AG+Fn|--------------------
                      -------------------      -------------------
  Layer 2 (Fn + Fn)
  ---------------------------------------      ---------------------------------------
- |  F11  | F12 | F13 | F14 | F15 | F16 |      |  §  |GuiLK| Gui |     | CpLk|       |
- | LCtrl |     |     | F17 | F18 | F19 |      | Left| Down| Up  |Right| Del |       |
+ |  F11  | F12 | F13 | F14 | F15 | F16 |      |  §  |GuiLK| Gui |     | CpLk|  BSpc |
+ | LCtrl |     |     | F17 | F18 | F19 |      | Left| Down| Up  |Right| Del | Enter |
  | Shift | F20 | F21 | F22 | F23 | F24 |      | Home| PgD | PgU | End | Ins | Shift |
- --------------------| Alt | Fn  | Gui |      |Enter| Fn  |AG+Fn|--------------------
+ --------------------| Alt | Fn  | Spc |      | Gui | Fn  |AG+Fn|--------------------
                      -------------------      -------------------
 ```
 
@@ -40,6 +103,7 @@
   - LED on = Gui key lock activated
 
 ## Build environment TeensyLC
+
 C/C++, Teensy arduino framework
 
 - Platformio (platformio.ini)
@@ -48,6 +112,7 @@ C/C++, Teensy arduino framework
   - Pressing all four corners on the keyboard
 
 ## Build environment rp2040 Zero
+
 Rust embedded, rp2040 HAL
 
 - Cargo (cargo.toml)