AT commands as input are sent to modem and responses given as output.
This program will read a file (or stdin) containing a list of AT
commands. Each command will be send to the modem, and all the response
for the command will be output to file (or stdout).
Example, to hang up any ongoing call:
$ echo ATH | atinout - /dev/ttyACM0 -
ATH
OK
$
Simple terminal program based on pySerial for raw binary / ascii communication with microcontrollers and such. Features local echo and automatic modulo-256 checksum and CR/LF postfix.