Hey, I'm dealing with problem how to sync my system with HD1024 thru serial port. Through arduino i found out, that it's running on port COM3 and sending specific type of message (*B1D HLLLL LLLLL *B1D LLLLL LLLLL, etc. ). I setted up the trigger for this event through port 3 with this message but nothing happens. Not sure if I explained well but i'll be very glad for some help. Thanks a lot.