3.4.2.1 - Digital Input/Output
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Practice Questions
Test your understanding with targeted questions
What is the primary function of a sensor?
💡 Hint: Think about how sensors help in gathering data.
Name one application of motion sensors.
💡 Hint: They detect presence and can activate devices.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What do sensors do in an IoT system?
💡 Hint: Think about what the sensors are primarily designed to do.
True or False? Actuators are considered the 'hands and feet' of an IoT system.
💡 Hint: Consider the analogy of how sensors and actuators interact.
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Challenge Problems
Push your limits with advanced challenges
Design a simple IoT system using a temperature sensor and a relay to control a fan. Describe the components and code needed.
💡 Hint: Consider the logic needed to connect the sensor output with the relay input.
How would you set up multiple sensors using the I2C method on a microcontroller? Outline the steps and components needed.
💡 Hint: Think about wiring and how data needs to be read from each address.
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