The global settings effect are
Display Connections Overlay¶
Default : ON
The connections overlay is a real-time static analysis and visualisation of the circuit showing the connections between components. This is useful while laying out circuits to ensure the connections are as expected. Also some types of circuit faults such as circuit-circuits can be detected and shown during layout as a warning. However with circuits with large numbers of connections updating the visualisation can cause lag which on some lower performance machines can be excessive. Toggling this setting to Off disables the overlay.
Spice Analog Evaluation¶
Default : OFF
VBB in introducing an enhanced circuit evaluation engine base on SPICE to better support analog circuit evaluation which has traditionally been not part of the VBB runtime. It’s an experimental integration but works quite well already for the basic’s. Only DC static analysis of basic circuits that include Voltage Sources, Resistors, Diodes, Switches and some L.E.D’s is currently supported but already this is useful for voltage dividers, pullup, pulldown, series LED and other circuits that VBB handles only as special cases in the current evaluation engine. Not all components are modelled to be compatible with SPICE so not all circuits evaluate correctly when using SPICE. To enabled SPICE for your circuit toggle this setting to ON.
The AnalogSpice examples contains a collection of examples that work with the SpiceModel
The version of Virtual Breadboard