[mythtv-users] Serial control of a TV

[stuart]

Yan Seiner wrote:
> This is driving me absolutely nuts.  I have a Sharp Aquos, which has a 
> serial port.  You can send some very basic commands to the TV - like ON, 
> OFF, set the volume, etc.
> 
> When I connect via minicom, I can send "POWR0   " I get back OK and the 
> TV shuts off.
> 
> When I echo "POWR0   " via the shell, I get back ERR and the TV doesn't 
> shut off.
> 
> Is anyone controlling a Sharp TV via serial?
> 
> And if so, WTF is the difference between minicom and
> 
> stty -F $PORT 9600 -crtscts cs8 -parenb -cstopb raw
> echo "POWR0   "
> 
> ????
>

Just a guess, check how the line ends if you can for each application. 
There may be only a ctrl-j or a crtl-m or both.  And check the order.