diff --git a/.DS_Store b/.DS_Store
index 358ad1a..027ee58 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/IIc-USB/Keyboard Shield IIc.pdf b/IIc-USB/Keyboard Shield IIc.pdf
new file mode 100644
index 0000000..6a5de9a
Binary files /dev/null and b/IIc-USB/Keyboard Shield IIc.pdf differ
diff --git a/IIe-USB/Keyboard Shield IIe.pdf b/IIe-USB/Keyboard Shield IIe.pdf
new file mode 100644
index 0000000..1c0dcea
Binary files /dev/null and b/IIe-USB/Keyboard Shield IIe.pdf differ
diff --git a/Joystick-Shield/Joystick Shield.pdf b/Joystick-Shield/Joystick Shield.pdf
new file mode 100644
index 0000000..9455f78
Binary files /dev/null and b/Joystick-Shield/Joystick Shield.pdf differ
diff --git a/USB_IIe_Kbd/IIe Keyboard.pdf b/USB_IIe_Kbd/IIe Keyboard.pdf
index 18137b3..090d867 100644
Binary files a/USB_IIe_Kbd/IIe Keyboard.pdf and b/USB_IIe_Kbd/IIe Keyboard.pdf differ
diff --git a/USB_Joystick/USB Joystick Interface.pdf b/USB_Joystick/USB Joystick Interface.pdf
index 2c97070..00b9f3d 100644
Binary files a/USB_Joystick/USB Joystick Interface.pdf and b/USB_Joystick/USB Joystick Interface.pdf differ