Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 513 · 40 questions

Remember (One chip, one job): Microcontroller = processor + memory + input/output pins on one chip. Board parts: USB port (power and code), pins, reset button, power LED, main chip, voltage regulator. Write the program → upload over USB → it runs its loop for ever; power by USB or a small battery.

1. 1.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
2. 2.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
3. 3.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
4. 4.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
5. 5.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
6. 6.True or false: a laptop needs much more power. (a) False (b) True
7. 7.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
8. 8.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the voltage regulator (c) the reset button (d) the USB port
10. 10.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
11. 11.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
12. 12.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a washing machine (d) a candle
13. 13.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a plain wall switch (d) a digital alarm clock
14. 14.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
15. 15.Which job is done by the reset button? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
16. 16.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
17. 17.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the voltage regulator (d) the main chip
18. 18.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
19. 19.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
20. 20.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the power LED (d) the USB port
21. 21.True or false: a laptop runs many apps at once. (a) False (b) True
22. 22.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
23. 23.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) brings power and code
24. 24.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
26. 26.Which job is done by the pins? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
27. 27.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
28. 28.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
29. 29.Which of these usually has a microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a wind-up toy (d) a candle
30. 30.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) brings power and code
31. 31.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) restarts the program (d) runs the program
32. 32.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
33. 33.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
34. 34.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a plain wall switch (d) a microwave oven
35. 35.Which of these usually has a microcontroller inside? (a) a smart watch (b) a hand pump (c) a plain wall switch (d) a spinning top
36. 36.True or false: a microcontroller needs much more power. (a) False (b) True
37. 37.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a wind-up toy (d) a spinning top
38. 38.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
39. 39.True or false: a washing machine has no microcontroller inside. (a) True (b) False
40. 40.True or false: a smart watch has no microcontroller inside. (a) True (b) False

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