Update README to clarify non-US keyboard instructions (#70)

Co-authored-by: unknown <ask.wietting@gmail.com>

README.md

@@ -50,7 +50,7 @@ Enter setup mode.
 Copy boot.py to the root of the pico-ducky.  
 Copy your payload script to the pico-ducky.  
 Disconnect the pico from your host PC.
-Connect a jumper wire between pin 18 and pin 20.
+Connect a jumper wire between pin 18 (`GND`) and pin 20 (`GPIO15`).
 This will prevent the pico-ducky from showing up as a USB drive when plugged into the target computer.  
 Remove the jumper and reconnect to your PC to reprogram.
 The default mode is USB mass storage enabled.   
@@ -86,7 +86,6 @@ For a language `LANG`, copy the following files from the zip's `lib` folder to t
 **DO NOT** change the names or extensions of the files. Just pick the right ones.  
 Replace `LANG` with the letters for your language of choice.
 
-- `keyboard_layout.py`
 - `keyboard_layout_win_LANG.py`
 - `keycode_win_LANG.py`
 
@@ -112,6 +111,22 @@ from keyboard_layout_win_LANG import KeyboardLayout
 from keycode_win_LANG import Keycode
 ```
 
+##### Example:  Set to German Keyboard (WIN_DE)
+
+```py
+from keyboard_layout_win_de import KeyboardLayout
+from keycode_win_de import Keycode
+```
+
+Copy the files keyboard_layout_win_de.mpy and keycode_win_de.mpy to the /lib folder on the Pico board
+```
+adafruit_hid/
+keyboard_layout_win_de.mpy
+keycode_win_de.mpy
+```
+
+
+
 ## Useful links and resources
 
 ### Docs

duckyinpython.py

@@ -14,11 +14,30 @@ from adafruit_hid.keycode import Keycode
 #from keyboard_layout_win_LANG import KeyboardLayout
 #from keycode_win_LANG import Keycode
 
+import supervisor
+
 import time
 import digitalio
 from board import *
-led = digitalio.DigitalInOut(LED)
-led.direction = digitalio.Direction.OUTPUT
+import pwmio
+
+led = pwmio.PWMOut(LED, frequency=5000, duty_cycle=0)
+
+def led_pwm_up(led):
+    for i in range(100):
+        # PWM LED up and down
+        if i < 50:
+            led.duty_cycle = int(i * 2 * 65535 / 100)  # Up
+        time.sleep(0.01)
+def led_pwm_down(led):
+    for i in range(100):
+        # PWM LED up and down
+        if i >= 50:
+            led.duty_cycle = 65535 - int((i - 50) * 2 * 65535 / 100)  # Down
+        time.sleep(0.01)
+
+# led = digitalio.DigitalInOut(LED)
+# led.direction = digitalio.Direction.OUTPUT
 
 duckyCommands = {
     'WINDOWS': Keycode.WINDOWS, 'GUI': Keycode.GUI,
@@ -32,7 +51,7 @@ duckyCommands = {
     'INSERT': Keycode.INSERT, 'NUMLOCK': Keycode.KEYPAD_NUMLOCK, 'PAGEUP': Keycode.PAGE_UP,
     'PAGEDOWN': Keycode.PAGE_DOWN, 'PRINTSCREEN': Keycode.PRINT_SCREEN, 'ENTER': Keycode.ENTER,
     'SCROLLLOCK': Keycode.SCROLL_LOCK, 'SPACE': Keycode.SPACE, 'TAB': Keycode.TAB,
-    'BAKCKSPACE': Keycode.BACKSPACE, 'DELETE': Keycode.DELETE, 
+    'BACKSPACE': Keycode.BACKSPACE,
     'A': Keycode.A, 'B': Keycode.B, 'C': Keycode.C, 'D': Keycode.D, 'E': Keycode.E,
     'F': Keycode.F, 'G': Keycode.G, 'H': Keycode.H, 'I': Keycode.I, 'J': Keycode.J,
     'K': Keycode.K, 'L': Keycode.L, 'M': Keycode.M, 'N': Keycode.N, 'O': Keycode.O,
@@ -101,25 +120,33 @@ def parseLine(line):
 kbd = Keyboard(usb_hid.devices)
 layout = KeyboardLayout(kbd)
 
+# turn off automatically reloading when files are written to the pico
+supervisor.disable_autoreload()
+
 # sleep at the start to allow the device to be recognized by the host computer
 time.sleep(.5)
 
-# check GP0 for setup mode
-# see setup mode for instructions
-progStatus = False
-progStatusPin = digitalio.DigitalInOut(GP0)
-progStatusPin.switch_to_input(pull=digitalio.Pull.UP)
-progStatus = not progStatusPin.value
+led_pwm_up(led)
+
+def getProgrammingStatus():
+    # check GP0 for setup mode
+    # see setup mode for instructions
+    progStatusPin = digitalio.DigitalInOut(GP0)
+    progStatusPin.switch_to_input(pull=digitalio.Pull.UP)
+    progStatus = not progStatusPin.value
+    return(progStatus)
+
+
 defaultDelay = 0
 
 def runScript(file):
     global defaultDelay
 
     duckyScriptPath = file
+    try:
         f = open(duckyScriptPath,"r",encoding='utf-8')
         previousLine = ""
-    duckyScript = f.readlines()
-    for line in duckyScript:
+        for line in f:
             line = line.rstrip()
             if(line[0:6] == "REPEAT"):
                 for i in range(int(line[7:])):
@@ -130,12 +157,69 @@ def runScript(file):
                 parseLine(line)
                 previousLine = line
             time.sleep(float(defaultDelay)/1000)
+    except OSError as e:
+        print("Unable to open file ", file)
+
+def selectPayload():
+    payload = "payload.dd"
+    # check switch status
+    # payload1 = GPIO4 to GND
+    # payload2 = GPIO5 to GND
+    # payload3 = GPIO10 to GND
+    # payload4 = GPIO11 to GND
+    payload1Pin = digitalio.DigitalInOut(GP4)
+    payload1Pin.switch_to_input(pull=digitalio.Pull.UP)
+    payload1State = not payload1Pin.value
+    payload2Pin = digitalio.DigitalInOut(GP5)
+    payload2Pin.switch_to_input(pull=digitalio.Pull.UP)
+    payload2State = not payload2Pin.value
+    payload3Pin = digitalio.DigitalInOut(GP10)
+    payload3Pin.switch_to_input(pull=digitalio.Pull.UP)
+    payload3State = not payload3Pin.value
+    payload4Pin = digitalio.DigitalInOut(GP11)
+    payload4Pin.switch_to_input(pull=digitalio.Pull.UP)
+    payload4State = not payload4Pin.value
+
+
+    if(payload1State == True):
+        payload = "payload.dd"
+
+    elif(payload2State == True):
+        payload = "payload2.dd"
+
+    elif(payload3State == True):
+        payload = "payload3.dd"
+
+    elif(payload4State == True):
+        payload = "payload4.dd"
+
+    else:
+        # if all pins are high, then no switch is present
+        # default to payload1
+        payload = "payload.dd"
+
+
+    return payload
+
+progStatus = False
+progStatus = getProgrammingStatus()
 
 if(progStatus == False):
     # not in setup mode, inject the payload
-    print("Running payload.dd")
-    runScript("payload.dd")
+    payload = selectPayload()
+    print("Running ", payload)
+    runScript(payload)
 
     print("Done")
 else:
     print("Update your payload")
+
+led_state = False
+while True:
+    if led_state:
+        led_pwm_up(led)
+        led_state = False
+    else:
+        led_pwm_down(led)
+        led_state = True
+