Has anyone looked into how to get the BDS to turn on the element within 2 degrees of the set point without adding additional controllers like the auber pid? I'm thinking about trying to modify the circuit board to achieve this. I'm assuming there's a switch of some sort that's soldered that may be able to be replaced with one that will kick the heating element on before I lose 15 degrees in the cabinet.
If know has and decide to dive into this, I'll let you all know what I find.
The switching is all handled by the onboard processor. You could install a more accurate temperature sensor but without looking at the firmware I'm not sure it would improve performance. External PID is the straightforward way to do it.
What Sam66 said.
John