Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 735 · 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 job is done by the main chip? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) restarts the program
2. 2.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the main chip (d) the pins
3. 3.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the main chip (d) the voltage regulator
5. 5.True or false: a laptop needs much more power. (a) False (b) True
6. 6.🤖 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
7. 7.True or false: a laptop runs one small program. (a) False (b) True
8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) a 230 V cable (d) bare mains wires
9. 9.Which of these has no microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a digital alarm clock (d) a TV remote
10. 10.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a plain wall switch (d) a spinning top
11. 11.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
12. 12.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
13. 13.Which job is done by the USB port? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on
14. 14.Which job is done by the voltage regulator? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) restarts the program
15. 15.True or false: a candle usually has a microcontroller inside. (a) True (b) False
16. 16.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it starts again (d) it deletes itself
17. 17.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a spinning top (d) a washing machine
18. 18.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
19. 19.🤖 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
20. 20.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a digital thermometer (d) a wind-up toy
21. 21.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
22. 22.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the voltage regulator (d) the reset button
23. 23.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
24. 24.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
25. 25.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
26. 26.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
27. 27.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a microwave oven (d) a bicycle bell
28. 28.True or false: a microcontroller needs much more power. (a) True (b) False
29. 29.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
30. 30.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
31. 31.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the USB port (c) the pins (d) the main chip
32. 32.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
33. 33.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
34. 34.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
35. 35.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
36. 36.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
37. 37.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a hand pump (d) a toy robot
38. 38.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
39. 39.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
40. 40.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes

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