USB Host Shield

The USB Host Shield is a powerful add-on for your Arduino projects. It lets your Arduino act as a USB Host, which means it can control USB devices like keyboards, mice, USB gamepads, Android phones, and more. This opens up an exciting range of interactive and automation possibilities for your DIY builds.

This shield is based on the MAX3421E USB controller chip, which manages all USB protocols and communication. Simply stack the shield onto your Arduino Uno, Mega, or other compatible boards, and you’re ready to connect USB peripherals. You can also use libraries such as USB_Host_Shield_Library_2.0, which supports a wide range of devices.

It’s especially useful for creating human interface projects, like game consoles, data loggers, robotics controllers, or even Arduino-based USB phone communication setups. For example, you can control a robot using a PS3 controller, or connect an Android phone using the Android Debug Bridge (ADB).

To build even more advanced systems, you can pair this shield with modules from our Arduino and Accessories or sensors from Electronics Components.

Key Features

• ✅ Adds USB Host capability to Arduino

• ✅ Built on MAX3421E USB controller

• ✅ Supports USB HID devices (keyboard, mouse, gamepad)

• ✅ Compatible with Arduino Uno, Mega, Leonardo

• ✅ Full-size USB Type-A port

• ✅ Works with Android phones via ADB or ADK

• ✅ Supported by USB Host Shield 2.0 Library

• ✅ Plug-and-play, stackable shield design

Applications and Use Cases

• 🎮 Connect USB game controllers to Arduino-based robots

• 🖱️ Add keyboard/mouse control to interactive installations

• 📱 Interface Arduino with Android smartphones via USB

• 🔄 Build data-logging systems using USB flash drives (with modification)

• 🧪 Develop human-machine interface (HMI) experiments

• 🎛️ Create custom controllers for machines or emulators

Technical Specifications

• Chipset: MAX3421E USB peripheral/host controller

• USB Port: Type-A female

• Voltage Level: 5V logic (compatible with most Arduino boards)

• Communication Interface: SPI

• Library Support: USB_Host_Shield_Library_2.0

• Compatible Boards: Arduino Uno, Mega, Leonardo, Due (some with level shifting)

• Form Factor: Arduino Shield standard

Precautions

• ⚠️ Avoid plugging in high-current USB devices without external power

• ⚠️ Double-check library compatibility before uploading code

• ⚠️ Ensure correct SPI connection when using non-standard Arduino boards

• ⚠️ Use a powered USB hub if connecting power-hungry peripherals

Recommended Pairings

• Compatible with Arduino Uno and Mega

• Integrate with sensors and inputs from Electronics Components

• Build sturdy projects with tools from Tools and Accessories

📺 YouTube Tutorial

Watch: USB Host Shield Arduino Tutorial – Connecting a PS3 Controller

🛒 Buy Now

Upgrade your Arduino projects with USB control! Order the USB Host Shield today from our Arduino and Accessories collection.