On 3/9/17 7:34 AM, [email protected]
wrote:
Hi,
I would like to know if exist any other module
to communicate via serial in python, instead of
PySerial.
I want to know this because, PySerial only
communicate with "string", and i have a
microcontroller that will receive data from a
BeagleBone Black, and i shouldnt do an algoritm
on this microcontroller to change strings to int
or bytes, because will spend a lot of
processing, and every character on a string uses
one byte, and that will occupate a lot on this
micro.
Saying this, i want to send data in int/hex or
binary format instead of string from the
BeagleBone side, other solution can be change
the PySerial module to do this.
Any help will be aprecciated.
Best Regards,
David
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Hi David,
PySerial is the way to go. Python has several ways
to do the conversion for you. Google around a bit
and you will find several examples.
Use the array module if you want to send several
bytes using PySerial. Here is an example of
sending a list of data. msgList is a list of
integer data to send. For example msgList =
[1,2,3,4,5] and serialObj is the opened serial stream.
import array
binMessage = array.array('B') <-- creates
an empty binary array
binMessage.extend(msgList) <-- converts
and copies the list to the array
serialObj.write(binMessage.tostring())
<-- Send it out. Notice the tostring function
serialObj.flush()
Mark
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