Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 521 · 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 washing machine usually have a microcontroller inside? (a) Yes (b) No
2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
3. 3.True or false: a smart watch has no microcontroller inside. (a) True (b) False
4. 4.True or false: a microcontroller runs one small program. (a) False (b) True
5. 5.Which job is done by the pins? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) keeps the voltage steady
6. 6.True or false: a TV remote has no microcontroller inside. (a) True (b) False
7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the main chip (c) the power LED (d) the USB port
8. 8.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a microwave oven (d) a smart watch
9. 9.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
10. 10.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
11. 11.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a smart watch (d) a bicycle bell
12. 12.Which of these has no microcontroller inside? (a) a TV remote (b) a spinning top (c) a toy robot (d) a digital alarm clock
13. 13.True or false: a microcontroller runs many apps at once. (a) False (b) True
14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
15. 15.Which of these has no microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a washing machine (d) a microwave oven
16. 16.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
17. 17.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a plain wall switch (d) a wind-up toy
18. 18.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
19. 19.True or false: a microcontroller needs much more power. (a) False (b) True
20. 20.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the power LED (d) the pins
21. 21.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
22. 22.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) it starts again (d) the board breaks
23. 23.True or false: a laptop needs much more power. (a) False (b) True
24. 24.True or false: a candle has no microcontroller inside. (a) False (b) True
25. 25.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
26. 26.🤖 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
27. 27.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a candle (d) a washing machine
28. 28.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
29. 29.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
30. 30.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) bare mains wires (c) a wall socket directly (d) a 230 V cable
31. 31.Which of these has no microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a digital alarm clock (d) a microwave oven
32. 32.Which of these has no microcontroller inside? (a) a hand pump (b) a washing machine (c) a toy robot (d) a microwave oven
33. 33.True or false: a hand pump has no microcontroller inside. (a) False (b) True
34. 34.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a washing machine (d) a wind-up toy
35. 35.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a wind-up toy (d) a bicycle bell
36. 36.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
37. 37.🤖 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
38. 38.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
39. 39.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a microwave oven (d) a hand pump
40. 40.True or false: a laptop uses very little power. (a) True (b) False

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