Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 716 · 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.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the voltage regulator (d) the power LED
2. 2.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
3. 3.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
4. 4.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
5. 5.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
6. 6.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
7. 7.True or false: a laptop uses very little power. (a) False (b) True
8. 8.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
9. 9.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a digital alarm clock (d) a wind-up toy
10. 10.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
11. 11.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a bicycle bell (d) a smart watch
12. 12.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
13. 13.True or false: a hand pump has no microcontroller inside. (a) True (b) False
14. 14.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
15. 15.True or false: a laptop has no screen of its own. (a) True (b) False
16. 16.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a microwave oven (d) a hand pump
17. 17.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the voltage regulator (c) the pins (d) the main chip
18. 18.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
19. 19.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
20. 20.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
21. 21.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
22. 22.True or false: a microcontroller needs much more power. (a) True (b) False
23. 23.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a bicycle bell (d) a candle
24. 24.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
25. 25.True or false: a toy robot has no microcontroller inside. (a) False (b) True
26. 26.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
27. 27.Which of these has no microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a digital alarm clock (d) a TV remote
28. 28.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
29. 29.True or false: a laptop needs much more power. (a) False (b) True
30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
31. 31.True or false: a microcontroller runs one small program. (a) False (b) True
32. 32.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the power LED (c) the reset button (d) the USB port
34. 34.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
35. 35.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a big desktop computer (d) a kind of bulb
36. 36.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
37. 37.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
38. 38.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
39. 39.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
40. 40.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) a 230 V cable (d) USB or a 9 V battery

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