git clone https://github.com/adafruit/Adafruit_BusIO.git Look for Adafruit_I2CDevice.h (note capitalization difference) On Linux/Mac:

Option 1: Official Adafruit CircuitPython Library

# For Python version git clone https://github.com/adafruit/Adafruit_CircuitPython_BusDevice.git zip -r adafruit_i2cdevice.zip Adafruit_CircuitPython_BusDevice/adafruit_bus_device/i2c_device.py git clone https://github.com/adafruit/Adafruit_BusIO.git zip -r adafruit_i2cdevice.zip Adafruit_BusIO/Adafruit_I2CDevice.h

git clone https://github.com/adafruit/Adafruit_CircuitPython_BusDevice.git The file is located at: adafruit_bus_device/i2c_device.py (Python version)