Aurora Multimedia TV/ FM Tuner V Tune Pro User Manual
Page 10
10.0
11.0 RS-232 Protocol
The VTune Pro is addressable. This allows multiple VTune Pro units to be connected together via
the loop port. When using commands with an address of 001 to 999 after the “!” the auto
feedback from changes in the volume, channel, etc will no longer work to prevent collision.
Polling should be used. Also, “error” will not be sent unless it is specific to an address. When
address 0 is used all auto feedback will work. If the commands below are not sent with a three
digit address after the ”!” And multiple devices are connected via loop port then all devices will
respond which is not good practice as collisions will occur. A response will occur when a
command is sent with an address except it will now include the address of the unit replying. To
talk to all units at the same time with no response use “***” in place of the 3 digit address. This
is useful when multiple units are to be set to a channel or volume level.
Eg.
!001KEY_LEFT
~001KEY_LEFT
!***KEY_CH+
response
Control Port
!KEY_RIGHT
RS232 -
Contact Closure -
Pins 1,3,5
Pins 1,2,4,6
Pin 1 - Ground
Pin 3 - TX
Pin 5 - RX
Pins 1,2: TV
Pins 1,4: Channel +
Pins 1,6: Channel -
Pins 1,4,6: FM
Pins 1,2,4: Volume +
Pins 1,2,6: Volume -
Baud Rate: 9600 8N1
Note: Protocol below is as of firmware version 1.10 New commands will be available on future
revisions to give more discrete full featured commands. Check on the Aurora website for the latest
firmware and RS232 command additions.
? IS A QUERY COMMAND
(Does not have to be Case Sensitive)
! IS A COMMAND
(Does not have to be Case Sensitive)
~ IS A RESPONSE
(ALL RESPONSES ARE CAPITALS)
!KEY_LEFT
Left
Right
!KEY_UP
Up arrow key
!KEY_DOWN
Down arrow key
!KEY_SEL
Select
!KEY_CH-
Channel Down
!KEY_CH+
Channel Up
!KEY_LAST
Toggles between the last 2 channels selected
!KEY_0
0
!KEY_1
1
!KEY_2
2
!KEY_3
3
!KEY_4
4
!KEY_5
5
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