Page 70 - Robo_Genius_V1.0_flipbook_C5

Concepts

1. Colour Mixing with RGB LED: You will explore how an RGB LED can combine
the primary colours (Red, Green, Blue) to create a wide range of colours.
They will understand how to control each colour by adjusting the current

flowing through each of the LED’s terminals.

2. Voltage Regulation and Current Control: The activity teaches you how a
7805 voltage regulator provides a stable 5V output, and how resistors are

used to control the current flowing to the RGB LED, preventing it from being
damaged by excessive current.

Observations

In the Mood Light Circuit using Tinkercad activity, you will observe how the

RGB LED glows in different colours as they adjust the power supplied to each
of the colour terminals (Red, Green, and Blue). They will see how the resistor

helps protect the LED, and how the voltage regulator ensures that the power
supply remains stable. This activity demonstrates how electronics can be
used to create colour effects, and introduces them to the basics of voltage

regulation, current limiting, and RGB colour mixing.

Application

Entertainment Systems: RGB LEDs are integrated

into entertainment setups, such as gaming rigs and
home theatres, to provide customisable lighting
effects that synchronise with audio and video content.

IParallel and Series Circuits

Let's learn about parallel and series circuits, understanding how electricity
flows through different paths.

Series Circuit

In a series circuit, components are connected one after another, allowing
electricity to flow through a single path. If one component fails, the entire

circuit stops working.
Voltage: Shared among components.
Current: Same through all components.

68 RoboGenius (V1.0)-V