I2C Devices

Read and write to I2C devices connected to Arduino^®hardware

Create an Arduino object usingarduinobefore you use I2C functions. SeeConnect to Arduino Hardwarefor more information.

Functions

`device`	Connection to device on I2C bus on Arduino hardware
`scanI2CBus`	Scan I2C bus on Arduino hardware for device address
`read`	Read data from I2C bus
`write`	Write data to I2C bus
`readRegister`	读取数据从I2C device register
`writeRegister`	Write data to I2C device register
`i2cdev`	Connection to device on Arduino hardware I2C bus

Learn how to store and retrieve data from an I2C EEPROM device.

Learn how to measure temperature from an I2C device on your Arduino hardware.

Learn how Arduino hardware interfaces with the I2C protocol.