add schematic pdfs and firmware code

Code/devterm_keyboard/devterm_keyboard.ino

@@ -0,0 +1,49 @@
+#include "keyboard.h"
+#include "keys.h"
+#include "trackball.h"
+#include "devterm.h"
+
+#include <USBComposite.h>
+
+#define SER_NUM_STR "20210320"
+
+USBHID HID;
+DEVTERM dev_term;
+
+void setup() {
+  USBComposite.setManufacturerString("ClockworkPI");
+  USBComposite.setProductString("DevTerm");
+  USBComposite.setSerialString(SER_NUM_STR);
+  
+  dev_term.Keyboard = new HIDKeyboard(HID);
+  dev_term.Joystick = new HIDJoystick(HID);
+  dev_term.Mouse    = new HIDMouse(HID);
+  
+  dev_term.Keyboard_state.shift = 0;
+  dev_term.Keyboard_state.layer = 0;
+  dev_term.Keyboard_state.caps_lock = 0;
+  
+  dev_term._Serial = new  USBCompositeSerial;
+  
+  HID.begin(*dev_term._Serial,HID_KEYBOARD_MOUSE_JOYSTICK);
+
+  while(!USBComposite);//wait until usb port been plugged in to PC
+  
+
+  keyboard_init(&dev_term);
+  keys_init(&dev_term);
+  trackball_init(&dev_term);
+  
+  dev_term._Serial->println("setup done");
+
+  //delay(3000);
+}
+
+void loop() {
+
+  trackball_task(&dev_term);
+  keys_task(&dev_term); //keys above keyboard
+  keyboard_task(&dev_term);
+  
+
+}