user1144: So I am working on speeding up a nixie tube speedometer, in this question: , but this brought up another question.  Would having matching baud rates for multiple external devices speed up processes. 
In the case of the other question the OBD-II device is running at 38400 where the Nixie Tubes are running at 9600.  Since I'm taking the info from the OBD-II connector and doing a little math and sending it to the Nixie Tubes, would it be beneficial to have the same baud rate for both devices?
Now... before you down-vote this question for making some sort of "duplicate" this also answers a question about having a "master" serial hub and having communication between different "slave" serial devices.

user368: It all depends on how often speed is being reported via the OBD-II connection. If the report rate is faster than the update rate of the tubes then yes, increasing the speed of the tube circuit (not necessarily the connection itself) can have an effect (as long as the tubes themselves can keep up, of course). If the speed is being reported slower than the tubes then don't bother unless you have other reasons for increasing it, since both bit rates are already so much faster than the human mind can see, much less process.

1144: <p>So I am working on speeding up a nixie tube speedometer, in this question: , but this brought up another question.  Would having matching baud rates for multiple external devices speed up processes. </p>

<p>In the case of the other question the OBD-II device is running at 38400 where the Nixie Tubes are running at 9600.  Since I'm taking the info from the OBD-II connector and doing a little math and sending it to the Nixie Tubes, would it be beneficial to have the same baud rate for both devices?</p>

<p>Now... before you down-vote this question for making some sort of "duplicate" this also answers a question about having a "master" serial hub and having communication between different "slave" serial devices.</p>
 368: <p>It all depends on how often speed is being reported via the OBD-II connection. If the report rate is faster than the update rate of the tubes then yes, increasing the speed of the tube circuit (not necessarily the connection itself) can have an effect (as long as the tubes themselves can keep up, of course). If the speed is being reported slower than the tubes then don't bother unless you have <em>other</em> reasons for increasing it, since both bit rates are already so much faster than the human mind can see, much less process.</p>
