I am experiencing a problem with CMD Messenger, I think.
I am using a DaisyWorks Arduino derivative, with a Roving RN-41 BT module. Basically I have built a datalogger that runs 24/7, at a remote location. I want to collect data once a day via BT. I got all communcation commands working and tested, but …
Every day, when I make first contact with the device it returns “3,Unknown command;”. Only after a single or a couple of retries, the program seems to able to interpret the command. Do you reckon this behaviour has anything to do with the hardware (e.g. the BT module) or is it due to the Arduino CMDMessenger library? Is there a way to fix this?
Thanks for your help!