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WalesElectronicsQuick questions
Component 2: Microcontroller Systems
Quick questions on Microcontroller architecture and interfacing: ports, inputs and outputs - WJEC A-Level Electronics
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
State why a switch connected to a microcontroller input needs a pull-up (or pull-down) resistor. [2 marks]
What is q2?Show answer
Explain why an on-chip ADC is useful in a microcontroller. [2 marks]
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