DeviceWrite

DeviceWrite[device,val]

writes the value val to the specified device.

DeviceWrite[device,{val1,val2,…}]

writes the sequence of values vali to the specified device.

DeviceWrite[device,paramval]

writes val as the value of the parameter param.

DeviceWrite[device,{param1val1,param2val2,…}]

writes values of several parameters.

Details

  • A device can be specified either by a DeviceObject or by a string representing a device class.
  • DeviceWrite is a blocking function; when called, it communicates with the device and does not return until it has finished writing data.
  • DeviceWrite[device,vals] returns vals, even if for some reason the write operation fails.

Examples

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Basic Examples  (1)

Open a demo device and write an expression to it:

Read from the device to verify successful writing:

Write a sequence of expressions and read the result:

Close the device:

Applications  (3)

Open a connection to a weather station device, configure it for writing, and write a string to the attached LCD:

Configure the pin direction of a GPIO device, e.g. on Raspberry Pi, and set it to digital "High":

Write a string of bytes to a Sphero robotic ball:

Read in the device response:

Wolfram Research (2014), DeviceWrite, Wolfram Language function, https://reference.wolfram.com/language/ref/DeviceWrite.html.

Text

Wolfram Research (2014), DeviceWrite, Wolfram Language function, https://reference.wolfram.com/language/ref/DeviceWrite.html.

CMS

Wolfram Language. 2014. "DeviceWrite." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/DeviceWrite.html.

APA

Wolfram Language. (2014). DeviceWrite. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/DeviceWrite.html

BibTeX

@misc{reference.wolfram_2024_devicewrite, author="Wolfram Research", title="{DeviceWrite}", year="2014", howpublished="\url{https://reference.wolfram.com/language/ref/DeviceWrite.html}", note=[Accessed: 18-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_devicewrite, organization={Wolfram Research}, title={DeviceWrite}, year={2014}, url={https://reference.wolfram.com/language/ref/DeviceWrite.html}, note=[Accessed: 18-November-2024 ]}