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Continue to ChatRaspberry Pi and the Adafruit I2C Library https://gearsofresistance.com/2012/11/raspberry-pi-and-the-adafruit-i2c-library/
Raspberry Pi and the Adafruit I2C Library https://gearsofresistance.com/2012/11/raspberry-pi-and-the-adafruit-i2c-library/