Mini USB‑HOST Expansion Module SPI Communication 3.3V Working Voltage MAX3421E Chip For Arduino Connect USB Keyboard Mouse Camera Android Device

📌Product Overview This is Mini USB‑HOST Shield v2.0 expansion module based on MAX3421E chip. It enables Arduino Pro‑Mini and other 3.3V main controllers to realize USB Host function, communicating with USB slave peripherals including USB keyboard, mouse, USB camera, Android mobile phone and other USB devices. It supports USB‑HUB and Google Android ADK function. Communication is realized via SPI bus interface. ✅Key Features • Working voltage: DC 3.3V • Communication Interface: SPI • Main Chip: MAX3421EEHJ • Support USB‑HUB function • Compatible with Google Android ADK • Compact perforated PCB design for easy wiring and soldering • Small size, light weight for embedded project integration 📋Supported Main Controller Work with 3.3V Arduino Pro‑Mini, 328 series mainboard. Compatible with Arduino Diecimila, Duemilanove, Mega 2560, Mega1280. Support Android ADK for Android phone: G1, Nexus One, Nexus S, Moto Droid X. Note: Mobile OS requires Android 2.3.4 or higher; tablet requires Android3.1 or higher. 📐Specifications Operating Voltage: DC 3.3V Communication Interface: SPI Dimension: 38mm * 20mm *15mm Net Weight: 3.8g Operating Temperature: -40℃ ~ +85℃ ⚠️Notice This module only works under 3.3V power supply. It does not provide technical support for secondary development. Please confirm your project requirement before purchase. 🎯Application Scenarios DIY electronic project, Arduino peripheral expansion, USB device communication test, Android ADK experiment, university teaching experiment, embedded system development.