user61955: So I came across lots of Arduino program setting serial speed to 115200 instead of 9600, while many people just kept using 9600 for the same purpose.
Why did people choose to use 115200 or other available speed? Why not just use 9600?

user61955: https://www.arduino.cc/en/Reference/softwareSerial Because 115200 band was also the fastest communication enabled by the software serial. 

61955: <p>So I came across lots of Arduino program setting serial speed to 115200 instead of 9600, while many people just kept using 9600 for the same purpose.</p>

<p>Why did people choose to use 115200 or other available speed? Why not just use 9600?</p>
 61955: <p><a href="https://www.arduino.cc/en/Reference/softwareSerial" rel="nofollow noreferrer">https://www.arduino.cc/en/Reference/softwareSerial</a> Because 115200 band was also the fastest communication enabled by the software serial. </p>
