SER2NET “Tee or Wedge”












0














I am successfully using SER2NET on a Raspberry Pi to translate RS-232 data to Ethernet. But I would like to "watch" the data coming from the serial port for a certain string, and if there is a match, I would like to send a "control string" back out the RS-232 port. It doesn't matter if the Ethernet port "sees" this returned string or not.



I'm running at 115K baud and the RPi is doing a lot of other things simultaneously, so whatever approach I use cannot use a lot of processor time. Does anyone know of a good way to do this?










share|improve this question









New contributor




Charles Linquist is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • Your question title ("tee or wedge") is interesting. What do you mean by that?  Do you already have an idea of how this can be done?
    – G-Man
    10 hours ago
















0














I am successfully using SER2NET on a Raspberry Pi to translate RS-232 data to Ethernet. But I would like to "watch" the data coming from the serial port for a certain string, and if there is a match, I would like to send a "control string" back out the RS-232 port. It doesn't matter if the Ethernet port "sees" this returned string or not.



I'm running at 115K baud and the RPi is doing a lot of other things simultaneously, so whatever approach I use cannot use a lot of processor time. Does anyone know of a good way to do this?










share|improve this question









New contributor




Charles Linquist is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • Your question title ("tee or wedge") is interesting. What do you mean by that?  Do you already have an idea of how this can be done?
    – G-Man
    10 hours ago














0












0








0







I am successfully using SER2NET on a Raspberry Pi to translate RS-232 data to Ethernet. But I would like to "watch" the data coming from the serial port for a certain string, and if there is a match, I would like to send a "control string" back out the RS-232 port. It doesn't matter if the Ethernet port "sees" this returned string or not.



I'm running at 115K baud and the RPi is doing a lot of other things simultaneously, so whatever approach I use cannot use a lot of processor time. Does anyone know of a good way to do this?










share|improve this question









New contributor




Charles Linquist is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I am successfully using SER2NET on a Raspberry Pi to translate RS-232 data to Ethernet. But I would like to "watch" the data coming from the serial port for a certain string, and if there is a match, I would like to send a "control string" back out the RS-232 port. It doesn't matter if the Ethernet port "sees" this returned string or not.



I'm running at 115K baud and the RPi is doing a lot of other things simultaneously, so whatever approach I use cannot use a lot of processor time. Does anyone know of a good way to do this?







networking






share|improve this question









New contributor




Charles Linquist is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




Charles Linquist is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 3 hours ago









G-Man

12.9k93264




12.9k93264






New contributor




Charles Linquist is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 10 hours ago









Charles Linquist

1




1




New contributor




Charles Linquist is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Charles Linquist is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Charles Linquist is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • Your question title ("tee or wedge") is interesting. What do you mean by that?  Do you already have an idea of how this can be done?
    – G-Man
    10 hours ago


















  • Your question title ("tee or wedge") is interesting. What do you mean by that?  Do you already have an idea of how this can be done?
    – G-Man
    10 hours ago
















Your question title ("tee or wedge") is interesting. What do you mean by that?  Do you already have an idea of how this can be done?
– G-Man
10 hours ago




Your question title ("tee or wedge") is interesting. What do you mean by that?  Do you already have an idea of how this can be done?
– G-Man
10 hours ago















active

oldest

votes











Your Answer








StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "106"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});






Charles Linquist is a new contributor. Be nice, and check out our Code of Conduct.










draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f490521%2fser2net-tee-or-wedge%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown






























active

oldest

votes













active

oldest

votes









active

oldest

votes






active

oldest

votes








Charles Linquist is a new contributor. Be nice, and check out our Code of Conduct.










draft saved

draft discarded


















Charles Linquist is a new contributor. Be nice, and check out our Code of Conduct.













Charles Linquist is a new contributor. Be nice, and check out our Code of Conduct.












Charles Linquist is a new contributor. Be nice, and check out our Code of Conduct.
















Thanks for contributing an answer to Unix & Linux Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.





Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


Please pay close attention to the following guidance:


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f490521%2fser2net-tee-or-wedge%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

Accessing regular linux commands in Huawei's Dopra Linux

Can't connect RFCOMM socket: Host is down

Kernel panic - not syncing: Fatal Exception in Interrupt