I2CMini is an easy-to-use, open-source USB to I2C interface board that is 100% compatible with I2CDriver. This tiny 18x18mm board acts as an I2C controller, passive monitor, and capture-to-PC, supporting up to 400 kHz operation. Designed for simplicity, it supports devices with Qwiic, Stemma QT, or Grove I2C connectors. USB to I2C interface on a compact 18x18mm PCB Dual I2C ports: one 0.1" header and one Qwiic / Stemma QT connector Includes 100mm Qwiic / Stemma QT to socket jumper set Flexible control via GUI, command-line, C/C++, and Python 2/3 on Windows, Mac, and Linux No special drivers needed; uses standard FTDI USB serial chip Separate 3.3V supply with on-chip temperature monitoring Programmable pull-up resistors on both I2C lines Compatible with IoT, drones, and sensor calibration applications Robust hardware with Silicon Labs EFM8 controller Powered via USB 2.0 micro USB connector This fully open hardware tool makes I2C development and debugging straightforward and efficient, especially when used with the provided software tools and libraries.Technical Specifications: Fast transfer rates: 100 & 400 kHz sustained I2C Programmable & auto-tuning I2C pullup resistors Supports 7- and 10-bit addressing, clock stretching, and bus arbitration 3.3V output, 5V tolerant inputs Maximum power out current: 270 mA; device current: 5 mA Dimensions: 18mm x 18mm x 2mm (0.7" x 0.7" x 0.1") Includes 100mm color-coded Qwiic jumper cable For more information and support, visit Excamera Labs and I2CDriver Mini page.
