Optimize heating algorithms automatically

[Traumflug]

In conjunction with http://github.com/triffid/FiveD_on_Arduino/issues#issue/5 , FiveD on Arduino could observe behaviour of the heating elements, calculate optimized parameters for the regulating algorithm and use that.

[triffid]

A PID tuning block could be fun.. wikipedia lists a few tuning algorithms I think. We would need to make sure it doesn't run automatically because having hand-tuned settings overwritten leads to face stabbing.. maybe an M-code to start it up, then save to the runtime variables so user can experiment before comitting to eeprom?

[Traumflug]

Oh, I forgot to mention I put these two feature requests in on behalf of Peer Janssen to encourage him to start with this. I have other plans for myself.