RS232 Protocol

7
Command: get_volume_r!
Description:
Request current volume value for the right channel. If a specific channel
prefix is not included, returns information for all 4 channels (0A/0B/0C/0D),
each line separated by carriage return
Return String(s): 0A/0B/0C/0D:volume_r_=##!
Return Description: 2 digit current right channel volume level
Example: 0C:volume_r_=40!