🕷️ HIDCrawler

Capture USB keystrokes with real-time feedback

🌟 Features

• ⌨️ HID Device Support – Works with USB keyboards and compliant input devices.
• 💡 LED Feedback – Blinks an LED on each keypress.
• 📡 Serial Monitor Output – Streams typed characters to Serial Monitor.
• ⏳ Debounce Logic – Prevents duplicate keypress detection.
• 🔧 Modifier Handling – Supports shifted characters (e.g., A, !, @).

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🛠️ Hardware Requirements

Component	Purpose	Optional?
Arduino Board	Uno/Leonardo with USB Host Shield	No
USB Host Shield	Enable USB device connectivity	No

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🔌 Installation

1. Clone the Repository

2. Install Dependencies

   • Install the USB Host Shield Library 2.0 via Arduino Library Manager.

3. Upload the Code

   • Open HIDCrawler.ino in Arduino IDE.
   • Select your board (Arduino Leonardo).
   • Click Upload (➡️ icon).

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⚡ Power Setup

⚠️ High-Power Devices
If your HID device isn’t detected or behaves erratically:

1. Solder the 5V points on the USB Host Shield.
2. Follow this 5V mod tutorial.

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🖥️ Usage

1. Open the Serial Monitor (Ctrl+Shift+M).

2. Set baud rate to 115200.

3. Start typing! Keystrokes will appear like this:

   Hello World!
   

4. The LED will blink briefly for each keypress.

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📚 Dependencies

• USB Host Shield Library 2.0 by Oleg Mazurov