diff --git a/docs/LICENSE.md b/docs/LICENSE.md
index 3598a45..0febbf8 100644
--- a/docs/LICENSE.md
+++ b/docs/LICENSE.md
@@ -1,3 +1,5 @@
+## License
+
 All Rights Reserved
 
 Copyright (c) 2024 Madcow Software  
diff --git a/docs/PINOUT.md b/docs/PINOUT.md
new file mode 100644
index 0000000..158f43d
--- /dev/null
+++ b/docs/PINOUT.md
@@ -0,0 +1,17 @@
+## Pinout Reference
+
+The table below is a cross-reference for all active pins on
+the microcontroller and their respective purpose:
+
+| Pin  | Name  | Function                  |
+| ---- | ----- | ------------------------- |
+| PB0  | MOS01 | MOSFET Peltier enable     |
+| PB1  | MOS02 | MOSFET Heating enable     |
+| PB2  | MOS03 | MOSFET Lights enable      |
+| PC0  | TWSCL | I2C Primary data bus SCL  |
+| PC1  | TWSDA | I2C Primary data bus SDA  |
+| PD0  | UADRX | UART Debug interface RX   |
+| PD1  | UADTX | UART Debug interface TX   |
+| PD4  | FAN01 | PWM Fan peltier hot side  |
+| PD5  | FAN02 | PWM Fan peltier cold side |
+| PD7  | FAN03 | PWM Fan heating element   |