Sending commands from Matlab to Duet board

Mohamed13

Hello everyone,

I am using Duet3 mini5+ and I'm trying to send commands from Matlab to the Duet board for motion control.
I tried to initiate a tcpclient with the ip address of the Duet board. see the commands below:

t=tcpclient('192.168.2.1',80);
writeline(t,"G1 X100")

I keep getting the same error :
Error using matlabshared.asyncio.internal.MessageHandler/onError
An existing connection was forcibly closed by the remote host

Is my approach correct? If yes, then what could be the issue? If not, please tell me what to do.

jay_s_uk

@Mohamed13 please see this page that tells you how http Comms work https://github.com/Duet3D/RepRapFirmware/wiki/HTTP-requests

Mohamed13

I still don't get it. How should I connect matlab to Duet board? I'm new to Duet board and providing the steps is much appreciated.
I read over the provided link, but I didn't know what exactly should be done.

droftarts

@Mohamed13 You need to open a session that the Duet firmware understands, then send the Gcode within that session. See https://github.com/Duet3D/RepRapFirmware/wiki/HTTP-requests#get-rr_gcode for an example. I would expect that example would be written something like this in Matlab (which I have never used, so may be incorrect):

t=tcpclient('192.168.2.1',80);
writeline(t,"/rr_connect?password=");
writeline(t,"/rr_gcode?gcode=G1 X100")

Ian

Mohamed13

I was able to connect to the board using Telnet. I created the tcpclient with port number 23 and it worked fine. I just had to enable telnet in my board config file.

Thanks everyone. I will leave it here so maybe someone will need it.

droftarts

@Mohamed13 Thanks. Could you post an example of the code you used in Matlab?

Ian

Mohamed13

t=tcpclient('192.168.2.1',23);
writeline(t,"G1 X100");

Just make sure to enable telnet in the config file. and Telnet client in the program features, you can access it from the Control Panel.