TwoWire Class

Syntax

class TwoWire : public Stream;

Description

TwoWire class interface enables LinkIt ONE to connect to other devices through I2C/TWI bus. It occupies pin D18 (SDA) as the serial data wire and pin D19 (SCL) as the serial clock wire.

Wire.h

Method	Description
available	Returns the number of bytes the read() function can read.
begin	Sets up the host address for I2C communication. LinkIt ONE supports void TwoWire:begin(void), which means the I2C bus is joined as a host. To use the Wire library, under normal conditions, this function must be called and called only once.
beginTransmission	Enables the communication with the slave at an assigned address. After that, the data are written by using write()and transmitted by using endTransmission().
beginTransmission	Enables the communication with the slave at an assigned address. After that, the data are written by using write() and transmitted by using endTransmission().
endTransmission	Ends the communication with the slave assigned by beginTransmission() and transmits the data buffered by write() to the slave.
read	Reads a byte of data which are sent from master to slave or from slave to master. The master makes requests by using requestFrom().
requestFrom	Enables a master to request data from a slave and get data by using available() and read()functions.
requestFrom	Enables a master to request data from a slave and get data by using available() and read()functions.
write	This function writes data into the queue and is called between functions beginTransmission()and endTransmission().
write