i've been trying to initialize a an array of chars, and i've noticed something weird. it seems as if i'm getting an extra character when i initialize the array one way versus another.
i.e.: when i initialize
char serTest[2]={'O','K'};
it's equivalent to this (it's adding the carriage return)
Calling Serial.print with a type of char * expects a null terminated string. Your array is not a normal null terminated string, so the function is traipsing off into memory printing stuff beyond the end of your array until it finds a null.
If you are using it as a string, your array should be initialized as