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read

Read I2C data

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Syntax

  • out = read(dev,numBytes,dataType)
    example

Description

example

out= read(dev,numBytes,dataType)reads data from the specified I2C device using the input number of bytes and data type.

Examples

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Read from an I2C Device

Create an I2C device object on Arduino®hardware, and read values from the device.

a = arduino(); dev = i2cdev(a,'0x48');

Read2bytes of date of typeuint16.

out = read(dev,2,'uint16');

Input Arguments

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dev— I2C device connectionobject

I2C device connection specified as an object.

numBytes— Number of bytes to readnumeric

Number of bytes of data to read form an I2C device specified as a number.

dataType— Data type to readuint8 (default) | uint16

Data type to read from an I2C device, specified as a string.

Output Arguments

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out——价值的数据numeric

Value of data in the I2C device, returned as a number or a numeric array.

See Also

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