When working with LED circuits, it is important to be familiar with the characteristics of the components. This is the reason why this application was created. It contains all the necessary information about the components in the circuit, including the value of the resistance.

There are many types of LEDs, and each of them has a different color and a different forward voltage. To be able to use this application, the user has to select the LED and the resistor. The application can work with both series and parallel connections. It is also possible to choose between the manual and the automatic mode. In the manual mode, the user has to enter the properties of the LED and the resistor. In the automatic mode, the application calculates the resistance of the resistor based on the properties of the LED and the power source.

It is important to mention that, in order to calculate the resistance of the resistor, the user has to know the voltage of the power source and the value of the resistance. The application contains a list of the most common power sources. However, if the user is not sure about the type of the power source, he can enter the voltage manually.