Arduino

Hardware Hacking

Intermediatelow risk

Arduino IDE and tools for programming microcontrollers used in hardware hacking, BadUSB attacks, and IoT testing.

Installation

sudo apt install arduino

Basic Syntax

arduino

Quick Facts

Full Name

Arduino IDE & Framework

License

Open Source

Language

C/C++ (Wiring)

Interface

GUI / CLI

Category

Hardware Hacking

Requires

Arduino-compatible Board

Tool Overview

Arduino is an open-source electronics platform based on easy-to-use hardware and software. In security testing, it enables hardware-based attacks including USB keystroke injection, serial sniffing, and custom implant development.

The Arduino ecosystem provides a complete toolchain for programming microcontrollers, making it accessible to both beginners and advanced hardware hackers for creating physical security testing devices.

Common Commands

arduino-cli versionPrint the installed Arduino CLI version

arduino-cli config initCreate a default configuration file for the CLI

arduino-cli config dumpPrint the current effective configuration

arduino-cli core update-indexRefresh the local index of available board platforms

arduino-cli core search avrSearch installable board platform cores by keyword

arduino-cli core install arduino:avrInstall the AVR core needed for Uno/Nano/Mega boards

arduino-cli core listList installed board platform cores and versions

arduino-cli core upgradeUpgrade all installed cores to their latest versions

arduino-cli board listList connected boards and their serial ports

arduino-cli board listallList every board known to the installed cores

arduino-cli board details -b arduino:avr:unoShow detailed capabilities and options for a board

arduino-cli sketch new MySketchCreate a new sketch project directory

arduino-cli compile -b arduino:avr:uno MySketchCompile a sketch for a specific board

arduino-cli upload -p /dev/ttyACM0 -b arduino:avr:uno MySketchUpload a compiled sketch to a connected board

arduino-cli compile -u -p /dev/ttyACM0 -b arduino:avr:uno MySketchCompile and upload in a single command

Step-by-Step Guide

1Set up the software environment on your host machine
2Plug your microcontroller into a USB port
3Create a new script or open an existing payload
4Configure the interface settings to match your specific hardware model
5Build the code and push it to the device's memory
6Validate that the hardware executes the code properly

Warnings

Creating malicious hardware payloads is a sensitive activity
Do not plug unauthorized devices into systems you do not own
Ensure your usage complies with your security assessment scope

Use Cases

BadUSB Attacks

Emulate keyboards for automated keystroke injection.

Serial Sniffing

Monitor UART/I2C/SPI communications.

RFID Cloning

Read and clone RFID tags for access control testing.

IoT Implants

Build custom hardware implants for physical assessments.

Key Features

Cross-Platform IDE: Available on Windows, macOS, and Linux.
Extensive Library: Thousands of community libraries for sensors and protocols.
Board Variety: Multiple form factors for different use cases.
USB HID Support: Keyboard/mouse emulation for BadUSB attacks.

Related Tools

flashrom

Hardware Hacking

Flash chip programming utility.

Frequently Asked Questions

What is Arduino used for in security testing?

Arduino is used for hardware hacking tasks like creating BadUSB devices for keystroke injection, sniffing serial communications, controlling RFID readers, and building custom security testing hardware.

Can Arduino be used for BadUSB attacks?

Yes, Arduino boards like the Leonardo and Micro can emulate USB keyboards. The Arduino Keyboard library allows injecting keystrokes, making them effective for BadUSB-style attacks on unlocked systems.

What programming language does Arduino use?

Arduino uses a simplified version of C/C++ with a Wiring-based framework. The Arduino IDE provides a straightforward environment for writing and uploading code to microcontrollers.

Do I need special hardware for Arduino hacking?

Basic Arduino boards (Uno, Nano, Leonardo) are sufficient for most security testing. Additional components like RFID modules, SD card shields, and wireless transceivers expand attack capabilities.

Output Explanation

The interface provides a text console at the bottom showing build success messages and the transfer status when writing to the board.

Ethical Usage Notice

This tool is designed for authorized security testing, educational purposes, and legitimate network administration only. Unauthorized access to computer systems is illegal.