Switchig different PID parameters simultaneously

[lneuhaus]

Some solution (either atomic switching of multiple registers, triggering PIDs etc.) should be implemented to avoid issues during locking, e.g. as described by Kun's mail today. Options are

• something like

  with switch_together:
  pid.i = 1
  pid.p = 2
  pid.input = 'in2'

  which will be executed when the indented block is left.

• something like

  pid.freeze()
  pid.i = 32
  pid.input= 'in2'
  pid.unfreeze()

• something with two different pids that and pid.on = False, pid.on=True and so on.

• Other proposals?

[lneuhaus]

A workaround for now: disable gains, switch input, enable gains. e7f99b455872376a20ad71d4b146f92d4493ce92