example usage: use a temperature controller without changing
the calibration setting:
reading the raw sensor, calibrate by software and use 'manual'
heater output
Change-Id: I3dbcf37e7726b48a0516d7aa30758be52b80fe58
Reviewed-on: https://forge.frm2.tum.de/review/c/secop/frappy/+/33910
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>
