Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 511 · 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.True or false: a washing machine has no microcontroller inside. (a) False (b) True
2. 2.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
3. 3.🤖 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
4. 4.True or false: a microcontroller needs much more power. (a) False (b) True
5. 5.Which of these has no microcontroller inside? (a) a TV remote (b) a hand pump (c) a digital thermometer (d) a washing machine
6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
7. 7.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
8. 8.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) brings power and code
9. 9.Which of these usually has a microcontroller inside? (a) a toy robot (b) a spinning top (c) a wind-up toy (d) a candle
10. 10.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the main chip (d) the USB port
11. 11.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a spinning top (d) a digital thermometer
12. 12.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a washing machine (d) a plain wall switch
13. 13.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
14. 14.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
15. 15.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
16. 16.True or false: a microcontroller runs one small program. (a) True (b) False
17. 17.Which of these has no microcontroller inside? (a) a candle (b) a digital alarm clock (c) a digital thermometer (d) a TV remote
18. 18.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
19. 19.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a spinning top (d) a smart watch
20. 20.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a bicycle bell (d) a microwave oven
21. 21.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
22. 22.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
23. 23.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a TV remote (d) a wind-up toy
24. 24.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
25. 25.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
26. 26.Which job is done by the voltage regulator? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) shows the board is on
27. 27.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
28. 28.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the power LED (d) the voltage regulator
29. 29.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
30. 30.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the pins (d) the USB port
31. 31.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the voltage regulator (c) the main chip (d) the reset button
32. 32.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a microwave oven (d) a bicycle bell
33. 33.Which job is done by the pins? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
34. 34.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
35. 35.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a spinning top (d) a wind-up toy
36. 36.Which job is done by the USB port? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) brings power and code
37. 37.True or false: a candle has no microcontroller inside. (a) False (b) True
38. 38.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the pins (c) the main chip (d) the power LED
39. 39.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) runs the program
40. 40.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop

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