This command receives a string from the serial port TXD/RXD.
It has no input parameter.
The return value is a Python string which contains the data received and stored in buffer at the moment of command execution. The value might be empty if no data is received.
Example:
a = SER.read()
receives a string from the serial port USIF0 handling, assigning the return value to a.
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Note: The buffer available for the SER.read command is 4096 bytes. The maximum number of bytes returned by each SER.read is 1023. |
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Note: It is up to Python script to keep empty SER.read buffer. |