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.