A configuration is a specific way in which the properties of a component are set such that the component conforms to a specific requirement.

For example, the "Resistor" component has a configuration called "Variable resistor" which requires that the "Type" property is set to "Variable".

Using configurations has several benefits:

  • The user can add a specific configuration of a component to the toolbox
  • Allows the component to implement more than one common component

The <declaration> section may contain only one <configurations> tag, which itself contains one or more <configuration> tags.

The name attribute contains the name of the configuration and the value attribute contains a comma-separated list of property requirements, in the format:


The requirements for a configuration can only be based on enum properties.


The configurations for the standard Resistor component:

  <configuration name="Resistor" value="Type:Standard" />
  <configuration name="Variable Resistor" value="Type:Variable" />
  <configuration name="Potentiometer" value="Type:Potentiometer" />
  <configuration name="Thermistor" value="Type:Thermistor" />
  <configuration name="LDR" value="Type:LDR" />