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Step 3 Connect the power bank and power distribution board with the help of USB cable to supply
power.

Step 4 When the light fall on the LDR Sensor module, you will hear the sound produced by buzzer.

Learning Outcomes

Students learnt about the basic concept of light sensor and how to control the buzzer sound using
the light.

Concepts

Understanding Sound: Exploring how sound is produced and transmitted, discussing different
sounds (like alarms) and their effects.

Basic Concepts of Electricity: Learning about how electronic components work together to
create a functioning alarm system.
Importance of Time Management: Discussing how alarms help with time management and the
importance of punctuality in daily life.

Critical Thinking and Problem Solving: Students will enhance their problem-solving skills as
they troubleshoot and optimise their alarm settings and functionality.

Observations

Light Sensitivity: Students will observe how the LDR reacts to changes in light. When it detects
sufficient light (e.g., daylight), it will signal the system to activate the alarm.
Alarm Activation: When the LDR detects light in the morning, the alarm (buzzer) will sound.
Students can discuss how this simulates a natural waking process, such as sunlight waking them
up.

Hands-On Activities with Tinker Orbits Kit 19