A/L ICT Lesson 11 Practice Tool: IoT and Digital Systems
This is a practice tool for Unit 11 of the Sri Lankan GCE Advanced Level ICT syllabus, Grade 13 (Competency 11), on digital systems and the Internet of Things. It covers microprocessor development systems such as the Arduino board and the Raspberry Pi single-board computer, how these differ from an ordinary computer, general-purpose input and output pins, analog and digital signals and the conversion between them with ADC and PWM, sensors that read the environment and actuators that act on it, the definition of the Internet of Things, how an IoT system senses, connects, processes and acts, the IoT architecture and its enabling technologies including connectivity and cloud computing, and everyday IoT applications from smart homes and agriculture to industry, along with the benefits and challenges such as security. This is a newer, shorter unit but appears in both MCQ and Paper II questions.
Eighteen activities are grouped into six modules: matching drills, flip cards, sorting exercises for analog versus digital and sensors versus actuators, a swipe task on benefits and challenges, step-sequencing for the IoT data flow, and a timed quiz. Your score is kept in your browser, so you can close the page and return to it.
The tool opens in English. Tap the language button to switch the whole tool to Sinhala. Both languages will use the same terms as the Lesson 11 notes once that page is published.
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