Getting function not found errors when uploading code

Hey +allObjects thanks for the reply.

I had save() in there like that so I could just plug the board in to the laptop, upload the latest change and disconnect immediately (i.e not having to manually type save() before switching over to in situ mode).

Dropping the save() and typing that manually does seem to have brought everything back to working (i.e I can reupload that code and board detects the right voltage with the divider in place again).

So that at least means I haven't totally nuked the board, thanks :)

I'm still a little concerned about why it worked previously with a save() during the upload and why it still works with the other two boards I have - it suggests something funky has gone awry at the hardware layer.

P.s Your example code seems to have gone missing.