There are many specific device drivers which make use of the I2C bus and, as in the case of the SPI bus, there is usually a choice of hand-coding the interaction using the I2C driver or using the ...

Using an I2C device has two problems - the physical connection between master and slave and figuring out what the software has to do to make it work. Here we’ll work with the SparkFun HTU21D/Si7021 ...