USB Host Shield 2.0 – Compatible with Arduino UNO, MEGA, ESP32 & Android AOA

Expand your microcontroller projects with the USB Host Shield 2.0 — a versatile add-on board that brings full USB host capability to Arduino UNO, MEGA, and ESP32 platforms. Whether you're connecting USB keyboards, mice, game controllers, Android devices via AOA (Android Open Accessory), or other USB peripherals, this shield makes it straightforward with its SPI interface and wide library support.

Engineered for makers, hobbyists, and electronics developers, this shield is built around the MAX3421E USB controller chip, communicating with your Arduino or ESP32 via a fast SPI bus. It supports USB 2.0 full-speed operation and is compatible with the popular USB Host Shield 2.0 open-source library, so you can get up and running quickly with minimal setup.

Key Features

Broad Compatibility: Works with Arduino UNO, MEGA, and ESP32 development boards
Android AOA Support: Connect and communicate with Android devices using the Android Open Accessory protocol
USB 2.0 Full-Speed: Supports a wide range of USB peripherals including HID devices (keyboards, mice, gamepads)
SPI Interface: Fast, reliable communication with your host microcontroller via SPI
OTG-Compatible: USB On-The-Go support for flexible device connectivity
SMD Construction: Surface-mount components for a compact, reliable build
Open-Source Library Support: Fully compatible with the widely-used USB Host Shield 2.0 Arduino library
Available in Two Variants: Choose from UNO or UNO 1 configuration to match your setup

What's in the Box?

1x USB Host Shield 2.0 (SMD version)

Ideal For

Connecting USB HID devices (keyboards, mice, joysticks) to Arduino projects
Android smartphone integration via AOA for DIY accessory builds
USB data logging and communication experiments
Robotics, automation, and IoT prototype development with ESP32

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Frequently Asked Questions

Q: What microcontroller boards is this USB Host Shield 2.0 compatible with?

A: This USB Host Shield 2.0 is compatible with Arduino UNO, Arduino MEGA, and ESP32 development boards. It communicates via SPI, making it adaptable to most platforms that support SPI communication and the USB Host Shield 2.0 library.

Q: What types of USB devices can I connect using this shield?

A: You can connect a wide variety of USB peripherals, including HID devices such as keyboards, mice, and game controllers. It also supports Android devices via the Android Open Accessory (AOA) protocol, as well as OTG-compatible USB devices.

Q: Do I need any special software or libraries to use this shield?

A: This shield is fully compatible with the popular open-source USB Host Shield 2.0 library available for Arduino. Simply install the library through the Arduino IDE Library Manager and follow the provided examples to start communicating with USB devices quickly.

Q: What is the difference between the UNO and UNO 1 variants?

A: Both variants provide full USB host functionality. The UNO and UNO 1 options refer to minor board configuration differences. If you are unsure which to choose, the standard UNO option is suitable for most Arduino UNO and MEGA setups.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.