Description Usage Arguments Value Examples
This function sets up a connection to the serial port at the specified port name and baud rate. The port is set in 8-N-1 mode and is opened in fully raw mode so you can send binary data.
1 | ar_init(serialport, baud = 9600L)
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serialport |
Name of the serial port (e.g. "/dev/tty.usbserial","COM1") |
baud |
Baud rate (bps) in integer. |
If connection is setup successfully, this function will return the file descriptor. If not, it will return -1.
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