link to specific version of firmata firmware from README and demo

[jywarren]

just a note to selves!

[rmeister]

Done in the latest PR, although not with explicit version numbers.

[jywarren]

Great. I also found this standard (identical) version on CodeBender, for folks who program their arduinos from there: https://codebender.cc/sketch:367638

[jywarren]

Also https://codebender.cc/example/Firmata/StandardFirmata#StandardFirmata.ino

[jywarren]

Ugh, sorry, i'd made a silly mistake; the modified version is here: https://codebender.cc/sketch:367638 (updated)

And here's a comparison of the modifications you made, based on CodeBender's "StandardFirmata": https://gist.github.com/jywarren/150c7c8a1f54d9d62760ad63e4cbf689/revisions

However, although the unmodified version uploads fine, the modified version outputs these errors in CodeBender:

https://gist.github.com/jywarren/e2d00994d3e577b5c6605f30aa86a20d

I'll try uploading it to an Arduino in the Arduino IDE.

[jywarren]

Ok, that worked. Soft modem being listed in the library manager really helps, too!

[rmeister]

The firmata library version on CodeBender is 2.3.1 and the one I used locally is 2.5.3. That's probably the reason for the compile errors.

I modified the StandardFirmata sketch available on CodeBender and it compiles, but for unknown reasons the board does not produce any signals.

Uploading Firmata 2.5.3 to the personal libraries also didn't work, still results in (very strange and unrelated) compile errors:
https://gist.github.com/rmeister/3f2d0c1804f49197c8876001da150d8c

I'd recommend not to use CodeBender for now.