ALLNET 4duino USB interface CH375

Universal USB CH375 Chip: supports USB-HOST and USB-DEVICE/SLAVE modes with 8-bit data bus, read/write control, and interrupt output for direct connection to AVR/ARM microcontrollers.

2x8 Pin Parallel Connector: Interface compatible with Arduino Uno/Mega and 4duino shields, powered by 5V from the host with integrated 3.3V LDO (max 800 mA) and 12 MHz crystal for stability.

USB Storage Functions: FAT16/FAT32 read/write support for pen drives, mass storage compatible for data logging, firmware updates, or file transfer in embedded projects.

Configurable Serial Mode: UART communication (serial input/output + switch) for connection to MCU/DSP/MPU, ideal for HMI interfaces, data loggers, or USB-TTL bridges.

USB Status Indicator LED: visual diagnostic of device connection/communication, facilitating debugging on breadboards or prototypes without an oscilloscope.

Compact Shield Dimensions: stackable form factor fits multiple stacks with jumpers for parallel/serial selection, perfect for IoT projects with local storage.

Flexible Power Supply: 5V from Arduino or external source, typical consumption 100-200 mA during operation, with basic ESD protection for light educational/industrial environments.

Available Arduino Libraries: CH375 libraries for Arduino IDE enable immediate integration into industrial control, home automation, or standalone data station projects.