Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 84 · 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 microcontroller runs many apps at once. (a) True (b) False
2. 2.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a digital thermometer (d) a plain wall switch
3. 3.🤖 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
4. 4.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the pins (c) the voltage regulator (d) the power LED
6. 6.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a wind-up toy (d) a washing machine
7. 7.True or false: a hand pump has no microcontroller inside. (a) False (b) True
8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it deletes itself (d) it stops forever
9. 9.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a washing machine (d) a microwave oven
10. 10.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
11. 11.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
12. 12.Which of these has no microcontroller inside? (a) a washing machine (b) a candle (c) a microwave oven (d) a digital thermometer
13. 13.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
14. 14.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
15. 15.Which job is done by the main chip? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) runs the program
16. 16.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the reset button (d) the main chip
17. 17.True or false: a laptop has no screen of its own. (a) True (b) False
18. 18.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
19. 19.🤖 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
20. 20.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the power LED (d) the voltage regulator
21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
22. 22.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
24. 24.Which job is done by the pins? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
25. 25.True or false: a microcontroller has no screen of its own. (a) False (b) True
26. 26.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
27. 27.True or false: a laptop runs many apps at once. (a) False (b) True
28. 28.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
29. 29.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
30. 30.True or false: a microcontroller runs one small program. (a) False (b) True
31. 31.Which of these has no microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a microwave oven (d) a TV remote
32. 32.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
33. 33.True or false: a laptop uses very little power. (a) True (b) False
34. 34.True or false: a laptop has a built-in keyboard. (a) True (b) False
35. 35.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
36. 36.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a wind-up toy (d) a candle
37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
38. 38.True or false: a laptop needs much more power. (a) False (b) True
39. 39.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
40. 40.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a smart watch (d) a wind-up toy

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