Thank you very much for a quick answer to my question!

My next question is, can I just load the latest mySonsor (2.1.1) to my Arduino IDE or what?

Sorry for being such a NOOBIE!!!!

Thanks - Mike

I'm new to mySensors so i've been trying various applications while I've been waiting for part to come.

I'm using an Raspberry Pi3 for my workbench computer and it's been working out very well.

I downloaded the ARM version of the Arduino IDE v1.8.1 and tried to various examples of Arduino .ino sketches and they all works fine.

I downloaded the the latest version of mySonsor 2.1.1 and tried some of the example sketches and I get an error stating ".mystools" error on compiling the sketch.

I've reverted to mySensors 2.0.0 with no compile errors.

Is there a fix out there?

Thanks - Mike