<![CDATA[Best way to send commands over Ethernet to a 2Dcode (QRcode) reader]]>Hello,

The current project I am working on uses a 2Dcode (QRcode) reader. This reader is connected over a switch to the RPI and has a static IP address. Connecting to it with its assigned software is no problem. There is a basic terminal which I can send commands over to read the code and get the data back.

Now I'm trying to send a command from the RPI with the Rexygen system and I'm quite lost on what to use. Is there a block that manages ethernet communication or should I move this logic into a python script and just exchange the data with that?

Thank you.

]]>https://forum.rexygen.com/topic/100/best-way-to-send-commands-over-ethernet-to-a-2dcode-qrcode-readerRSS for NodeMon, 18 May 2026 12:17:00 GMTFri, 20 Mar 2020 15:38:43 GMT60<![CDATA[Reply to Best way to send commands over Ethernet to a 2Dcode (QRcode) reader on Mon, 23 Mar 2020 22:10:25 GMT]]>Hi Ivan,

thank you for your question.
Using REXLANG function block you can manage Ethernet communication - see REXLANG documentation - part Communication functions: https://www.rexygen.com/doc/PDF/ENGLISH/BRef_ENG.pdf#page=447

Have a look also at "0504-01 Generic UDP Sender Receiver" example which can help you to start with the implementation.

Regards, Tomas

]]>https://forum.rexygen.com/post/340https://forum.rexygen.com/post/340Mon, 23 Mar 2020 22:10:25 GMT