pert, what theme are you using at the moment?
i just had a look at your https://github.com/per1234?tab=repositories , and saw some of your code in your libraries.very legible and quite good syntax-highlighted.
could you point me at the thread on that subject? i'm a noob on this forum - i don't know how to search it very well yet. :-)
I have run the update and upgrades from sudo but the version remains the same.
Is the Linux Arm the right version when running from the Pi?
Are there any step by step instruction for update IDE with the zip file?
Download the latest "Linux ARM" version of the Arduino IDE from https://www.arduino.cc/en/Main/SoftwareRight click on the downloaded file and select "Extract Here". The folder arduino-1.8.7 will be extracted from the downloaded file.You can move this folder to any convenient location on your drive.To start the Arduino IDE, run the file arduino-1.8.7/arduino.There is also an install script but it's not necessary to run that. It just creates a shortcut on your desktop.
Believe me I looked for a long time and couldn't find any information.