Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 633 · 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.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
2. 2.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
3. 3.Which of these usually has a microcontroller inside? (a) a spinning top (b) a smart watch (c) a hand pump (d) a plain wall switch
4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
5. 5.True or false: a microcontroller runs one small program. (a) False (b) True
6. 6.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
7. 7.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
8. 8.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
9. 9.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
10. 10.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) a wall socket directly (d) bare mains wires
11. 11.Which of these has no microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a microwave oven (d) a digital alarm clock
12. 12.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
13. 13.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
14. 14.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a bicycle bell (d) a digital alarm clock
15. 15.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
16. 16.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
17. 17.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) shows the board is on
18. 18.True or false: a microcontroller runs many apps at once. (a) False (b) True
19. 19.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) restarts the program
20. 20.Which job is done by the pins? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
21. 21.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a toy robot (d) a wind-up toy
22. 22.True or false: a TV remote has no microcontroller inside. (a) False (b) True
23. 23.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip
24. 24.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
25. 25.Which job is done by the main chip? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) runs the program
26. 26.True or false: a microcontroller needs much more power. (a) True (b) False
27. 27.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
28. 28.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the voltage regulator (c) the USB port (d) the reset button
29. 29.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
30. 30.Which of these usually has a microcontroller inside? (a) a washing machine (b) a candle (c) a spinning top (d) a wind-up toy
31. 31.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
32. 32.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
33. 33.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a bicycle bell (d) a candle
34. 34.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a candle (d) a smart watch
35. 35.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the power LED (c) the reset button (d) the USB port
36. 36.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the main chip (c) the power LED (d) the pins
37. 37.True or false: a laptop has a built-in keyboard. (a) False (b) True
38. 38.Which of these has no microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a microwave oven (d) a TV remote
39. 39.True or false: a laptop runs one small program. (a) True (b) False
40. 40.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop

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