Circuits.I2C.open
You're seeing just the function
open
, go back to Circuits.I2C module for more information.
Specs
Open an I2C bus
I2C bus names depend on the platform. Names are of the form "i2c-n" where the
"n" is the bus number. The correct bus number can be found in the
documentation for the device or on a schematic. Another option is to call
Circuits.I2C.bus_names/0
to list them for you.
I2c buses may be opened more than once. There is no need to share an I2C bus reference between modules.
On success, this returns a reference to the I2C bus. Use the reference in subsequent calls to read and write I2C devices