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display. If “direction” is equal to 2, then the arrow points east. Otherwise,
the arrow points west.

To make the battery last longer, the program pauses for half a second after

the arrow appears then clears the screen.

Concepts

1. Direction Detection using Accelerometer

Students will learn how the micro:bit’s accelerometer detects tilts and
movements in different directions. They will understand how devices sense

motion and use this information to trigger an output.

2. Conditional Logic in Programming
Students will explore how to use “if-else” logic to create conditions for

displaying specific arrow directions. For example, if the micro:bit is tilted to
the right, a right-facing arrow will blink, reinforcing their understanding of

logic-based decisions in programming.
3. Visual Output on LED Grid

Students will learn how to control the LED display by programming the
micro:bit to show different arrow symbols that represent the direction
detected by the accelerometer. This concept connects to visual representation

in programming.

Observations

In the Direction Blinking Arrow using Micro:bit activity, students will observe
how the micro:bit responds to tilting in various directions. When the micro:bit is
tilted to the right, a blinking right arrow appears, and when tilted to the left, a

left arrow blinks. This gives them hands-on experience with how sensors detect
movement and how these movements are converted into programmed actions.

students will observe how quickly and accurately the micro:bit responds to
changes in direction and how the LED display adapts.

Application

Fitness Trackers: These devices use accelerometers to

track movements, such as steps, running, or other physical
activities, helping users monitor their health.

Introduction to Micro:bit and Programming 69