ar_monitor: Stream serial port data into R console
In hebrewseniorlife/arduinor: Simple Library for Reading Serial Ports

This function wraps around ar_read() and will read serial port data into R console until user stop it.

1 2	ar_monitor(fd, flush_time = 0.5, eolchar = "\n", buf_max = 256, timeout = 5000)

`fd`	File descriptor returned by `ar_init()`. Should be an integer.
`flush_time`	Time to flush buffed results in the serial channel
`eolchar`	End of line character. Default value is `'\n'`
`buf_max`	Maximum length of one line of entry. Default is 256.
`timeout`	Timeout for reads in millisecs. Default is 5000 ms.