Setting Up Raspberry Pi Pico and Writing Scripts

This guide provides step-by-step instructions for setting up a Raspberry Pi Pico microcontroller board and writing scripts to run on it.

1. Hardware Setup

Materials Needed

• Raspberry Pi Pico board
• Micro USB cable
• Computer with USB port

Steps

1. Connect Raspberry Pi Pico to Computer:

   • Plug one end of the micro USB cable into the Raspberry Pi Pico's USB port.
   • Connect the other end of the cable to a USB port on your computer.

2. Prepare Development Environment:

   • Download and install the latest version of Thonny IDE from thonny.org.
   • Launch Thonny IDE on your computer.

2. Software Setup

Installing MicroPython Firmware

1. Download MicroPython Firmware:

   • Go to raspberrypi.org/software and download the latest MicroPython firmware for Raspberry Pi Pico.

2. Flash MicroPython Firmware:

   • Open Thonny IDE.
   • Go to Tools > Options > Interpreter.
   • Select MicroPython (Raspberry Pi Pico) as the interpreter.
   • Click Install or update firmware.
   • Follow the prompts to flash the MicroPython firmware onto the Raspberry Pi Pico.

Raspberry_pi_pico

3. Writing and Running Scripts

Example LED Blink Script

1. Open New Script:

   • In Thonny IDE, click File > New.

2. Write the Script:

   from machine import Pin
   import time
   
   led = Pin(25, Pin.OUT)
   
   while True:
       led.toggle()
       time.sleep(0.5)

Example FIREWALL BREAKER

1. Open New Script:
   • In Thonny IDE, click File > New.
2. Write the Script:

    import time
    import os
    import usb_hid
    from adafruit_hid.keycode import Keycode
    from adafruit_hid.keyboard import Keyboard
    from adafruit_hid.keyboard_layout_us import KeyboardLayoutUS
    time.sleep(3) 
    if not 'network.txt' in os.listdir():
    time.sleep(1.5)
    keyboard = Keyboard(usb_hid.devices)
    layout = KeyboardLayoutUS(keyboard)
   
    keyboard.send(Keycode.WINDOWS)
    time.sleep(0.60)
   
    layout.write("powershell\n")
   
    time.sleep(1.0)
    keyboard.send(Keycode.ENTER)
    time.sleep(0.30)
    keyboard.send(Keycode._ARROW)
    time.sleep(0.30) 
    keyboard.send(Keycode.ENTER)
    time.sleep(0.30)  
    keyboard = Keyboard(usb_hid.devices)
    layout = KeyboardLayoutUS(keyboard)
    keyboard.send(Keycode.ENTER)
    time.sleep(0.17)
       
    layout.write(" powershell -Command Start-Process powershell -Verb RunAs \n")
    keyboard.send("enter")
    keyboard.send(Keycode._ARROW)
    time.sleep(1.5)
    exit()
    
    keyboard.send(Keycode.ALT, Keycode.F4)

Firewall breaker video

firewall.off.1.1.mp4

Working of Raspberry Pi Pico Keyboard Automation Script

This Python script demonstrates keyboard automation using a Raspberry Pi Pico microcontroller board. The script utilizes the adafruit_hid library to emulate keypresses and interact with the host computer.

Script Overview

The script performs the following actions:

1. Imports:

   • Imports necessary modules including time, os, usb_hid, Keycode, Keyboard, and KeyboardLayoutUS from the adafruit_hid library.

2. Initial Delay:

   • Waits for 3 seconds (time.sleep(3)) to allow time for USB enumeration after connecting the Raspberry Pi Pico to the computer.

3. File Check:

   • Checks if a file named network.txt does not exist in the current directory using os.listdir().
   • If the file does not exist, it waits for an additional 1.5 seconds (time.sleep(1.5)).

4. Keyboard Initialization:

   • Initializes a virtual keyboard (keyboard) and sets the keyboard layout to US (layout = KeyboardLayoutUS(keyboard)).

5. Keyboard Actions:

   • Emulates keyboard actions to interact with the host computer:
     • Presses the Windows key (Keycode.WINDOWS) to open the Start menu.
     • Types powershell followed by pressing Enter to launch PowerShell (layout.write("powershell\n")).
     • Navigates to the Run as Administrator option in the PowerShell menu by sending ARROW_RIGHT key and then ENTER.
     • Executes the command powershell -Command Start-Process powershell -Verb RunAs to start a new PowerShell instance with administrative privileges.
     • Presses ENTER and ARROW_DOWN keys to confirm the action and proceed.

6. Script Termination:

   • Exits the script (exit()) and sends ALT + F4 key combination to close the PowerShell window (keyboard.send(Keycode.ALT, Keycode.F4)).

Running the Script

1. Setup:

   • Connect the Raspberry Pi Pico to your computer using a micro USB cable.

2. Software Setup:

   • Install the necessary libraries (adafruit_hid) for Raspberry Pi Pico development.
   • Use a compatible IDE like Thonny to edit and run Python scripts on the Raspberry Pi Pico.

3. Execution:

   • Copy the provided Python script (keyboard_automation.py) onto your Raspberry Pi Pico.
   • Open the script in Thonny IDE and run it to execute the keyboard automation actions.

Note

• This script demonstrates basic keyboard automation functionalities using Raspberry Pi Pico and adafruit_hid library.
• Use caution when running scripts that emulate keyboard actions, especially those that interact with system-level functions like opening PowerShell with administrative privileges.

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For more information on Raspberry Pi Pico and adafruit_hid library, refer to the official documentation and resources available at raspberrypi.org and Adafruit Learn.