Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 554 · 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 reset button? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) restarts the program
2. 2.True or false: a microcontroller runs many apps at once. (a) False (b) True
3. 3.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
4. 4.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
5. 5.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the main chip (c) the voltage regulator (d) the reset button
6. 6.True or false: a laptop has a built-in keyboard. (a) True (b) False
7. 7.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
8. 8.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
9. 9.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a wind-up toy (d) a toy robot
10. 10.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
11. 11.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a hand pump (c) a bicycle bell (d) a wind-up toy
12. 12.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
13. 13.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the power LED (d) the main chip
15. 15.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) brings power and code (d) runs the program
16. 16.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
17. 17.True or false: a hand pump has no microcontroller inside. (a) True (b) False
18. 18.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
20. 20.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a candle (c) a plain wall switch (d) a wind-up toy
21. 21.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the main chip (d) the power LED
22. 22.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the pins (c) the USB port (d) the power LED
23. 23.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
24. 24.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a smart watch (d) a spinning top
25. 25.Which job is done by the voltage regulator? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
26. 26.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the voltage regulator (d) the power LED
27. 27.True or false: a laptop has no screen of its own. (a) True (b) False
28. 28.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
29. 29.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
30. 30.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
31. 31.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
32. 32.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a hand pump (d) a microwave oven
33. 33.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
34. 34.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
35. 35.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
36. 36.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
37. 37.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a TV remote (d) a bicycle bell
38. 38.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
39. 39.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
40. 40.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a digital thermometer (d) a bicycle bell

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