Adafruit I2CMini by Excamera Labs

I²CMini is a compact open-source tool designed for seamless control of I²C devices via USB, fully compatible with I²CDriver. Its 18x18mm board simplifies I²C communication, perfect for integrating with Qwiic, Stemma QT, and Grove connectors.

Key features include dual I²C ports: one with a 0.1" header and another Qwiic/Stemma QT adapter. It offers flexible control with GUI, command-line, C/C++, and Python support across Windows, Mac, and Linux. Using a standard FTDI USB serial chip, it requires no special drivers, ensuring easy setup.

The board provides a 3.3 V supply for sensors, on-chip temperature monitoring, and configurable I²C bus pull-ups. Ideal for IoT and drone applications, it also supports swift device calibration. Effortlessly connect using the added jumper set or leverage it as a module for immediate USB-I²C access.