stringProblem.ino (1.0 KB)
This file shows the problem. The test.cfg file consists of a single line of text
PWMTopic:occ/shed/po\n
I'm using a Teensy 4.1 board with a built in SD card, hence the reference to BUILTIN_SDCARD. Change this as required for whatever you use; I'm sure the teensy isn't responsible for the problem.
Thanks again, guys.