Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 180 · 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 part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the reset button (d) the power LED
2. 2.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the main chip (d) the reset button
3. 3.Which of these has no microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a toy robot (d) a digital alarm clock
4. 4.True or false: a laptop has no screen of its own. (a) True (b) False
5. 5.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
7. 7.Which of these has no microcontroller inside? (a) a hand pump (b) a smart watch (c) a toy robot (d) a TV remote
8. 8.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the power LED (c) the main chip (d) the pins
9. 9.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
10. 10.True or false: a laptop uses very little power. (a) True (b) False
11. 11.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
12. 12.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
13. 13.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) brings power and code
14. 14.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
15. 15.True or false: a spinning top has no microcontroller inside. (a) True (b) False
16. 16.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) connect sensors and LEDs
17. 17.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
18. 18.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
19. 19.True or false: a laptop runs one small program. (a) False (b) True
20. 20.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
21. 21.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
22. 22.Which job is done by the USB port? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
23. 23.True or false: a candle has no microcontroller inside. (a) False (b) True
24. 24.🤖 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
25. 25.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
26. 26.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it deletes itself (d) it stops forever
27. 27.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a plain wall switch (d) a candle
28. 28.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
29. 29.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
30. 30.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the voltage regulator (d) the power LED
31. 31.True or false: a washing machine has no microcontroller inside. (a) False (b) True
32. 32.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the pins (d) the voltage regulator
33. 33.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) sent by sound (d) drawn with a pen
34. 34.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
35. 35.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a spinning top (c) a bicycle bell (d) a candle
36. 36.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
37. 37.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
38. 38.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
39. 39.True or false: a microcontroller has no screen of its own. (a) False (b) True
40. 40.True or false: a laptop has a built-in keyboard. (a) False (b) True

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