Here are some notes which would have saved me a lot of time in case they are helpful to anyone else. Thanks to Duct Tape and others for all the community support on this thread so far, and thanks in advance to anyone that might be able to get me unstuck.Īfter a bunch of trial and error I have just succeeded in getting full EX-LINK serial control working on my 2019 Samsung Q70R 55'.

If someone has those, that might help me solve my problem. I posted the same to the Samsung support community forum, but it doesn't look like that site gets much traffic and I haven't heard any replies.Īlso, I sometimes get response codes from commands even though they don't work, but I haven't seen any docs on what those mean. This tells me that my connection is good, at least for traffic *from* the TV. I also set RS-232 Jack to DEBUG, and received lots of console traffic at 115200 baud (normal for debug mode, but not normal 'ON' mode), but it didn't respond to anything I tried to type. Hotel/Hospitality Mode: Hospitality mode on or off makes no difference

Details below:Ĭonnectivity: 9600 baud, 8 bit, no parity, 1 stop bit, no hardware flow control I'd love some help figuring out what I'm doing wrong. I can turn it on, but no other command is responsive.

Like lucastx, I'm having a terrible time trying to control the TV via Ex-Link. I have a 2017 Samsung QLED TV (QN75Q70RAF).

Samsung mu6300 rs232 commands