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Concepts

Concept of Current Flow: Exploring how current flows through the circuit and how it affects the
LED’s operation.

Basic Programming: Writing and executing simple code to control the blinking of the LED,
reinforcing programming concepts.

Understanding Timing: Learning to measure time intervals for how long the LED stays on and
off.

Understanding of Circuitry and Electronics: Students will learn how to build a basic circuit
using a robot brain and an LED.

Observations

In the “Blinking an LED” activity in Tinker Orbits, students observe how to program an Arduino Nano
to make an LED light blink. By writing a simple code that specifies how long the LED should stay on
and off, they see firsthand how programming can control physical components. As they run their
program, the LED lights up for a set duration, then turns off, creating a rhythmic blinking effect. This
activity reinforces their understanding of basic coding concepts.

Students also learn to troubleshoot if the LED doesn’t blink as expected, encouraging critical thinking
and problem-solving skills. Overall, this hands-on experience deepens their understanding of
electronics and programming in an engaging way.

Applications

Traffic Signals: LEDs are used in traffic
lights and pedestrian signals, where blinking
indicates caution or countdown for crossing.
Automobile Indicators: In cars, blinking
LEDs are used in turn signals, hazard lights,
and dashboard warning indicators to alert
drivers of necessary actions.

Display Text on OLED

OLED stands for organic light-emitting diode and is one of the newer technologies available for TVs
and other digital displays.
As an OLED monitor lights individual pixels, rather than relying on a backlight, these pixels can be
turned off entirely, and this produces a pure black colour and a higher contrast with white. The
backlighting in LED monitors means they cannot block light out entirely.

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