B-USB-I2C — Smart Bridge from USB to I2C and UART
Discover the world of rapid prototyping
Hardware Control Without Coding
Configuring I2C modules in a microcontroller (MCU) program and compiling/uploading code every time can take hours. B-USB-I2C reduces this process to seconds. Test your sensors and displays instantly by sending direct commands from your PC using Microchip's powerful terminal software.
Time Efficiency: Read your registers, take your notes, and then write your MCU code correctly the first time without needing an IDE or compiler for initial testing.
Industrial Standard Hardware
Microchip MCP2221A Chipset
Provides seamless data transfer with the most stable USB-to-I2C bridge on the market.
Flexible Voltage Selection (3.3V / 5V)
Power your target device directly via USB thanks to the integrated onboard jumper.
I2C Pull-Up Control
Enable 10K pull-up resistors with a single jumper, eliminating the need for external components.
Dual Comm: I2C & UART
Full support for not only I2C but also standard UART TTL communication with TX/RX LED indicators.
Visual Guide & Software Support
Pin Definitions and Hardware Structure
Software Interface (SMBUS Terminal)
Resources & Downloads
Drivers and Terminal Software
Official Microchip MCP2221A packages.