Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 241 · 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 laptop uses very little power. (a) True (b) False
2. 2.True or false: a microcontroller needs much more power. (a) False (b) True
3. 3.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
4. 4.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
5. 5.True or false: a laptop needs much more power. (a) True (b) False
6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the power LED (c) the voltage regulator (d) the main chip
7. 7.True or false: a washing machine has no microcontroller inside. (a) True (b) False
8. 8.Which of these has no microcontroller inside? (a) a smart watch (b) a hand pump (c) a digital alarm clock (d) a digital thermometer
9. 9.True or false: a laptop has no screen of its own. (a) False (b) True
10. 10.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
11. 11.True or false: a laptop runs many apps at once. (a) True (b) False
12. 12.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
13. 13.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
14. 14.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
15. 15.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) bare mains wires (c) a 230 V cable (d) a wall socket directly
16. 16.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
17. 17.True or false: a spinning top has no microcontroller inside. (a) True (b) False
18. 18.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
20. 20.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the USB port (d) the pins
21. 21.True or false: a microcontroller runs many apps at once. (a) True (b) False
22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
23. 23.Which job is done by the reset button? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) brings power and code
24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
25. 25.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the voltage regulator (c) the main chip (d) the reset button
26. 26.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a toy robot (d) a candle
27. 27.Which of these has no microcontroller inside? (a) a digital thermometer (b) a spinning top (c) a digital alarm clock (d) a toy robot
28. 28.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
29. 29.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a candle (d) a digital alarm clock
30. 30.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
31. 31.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
32. 32.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
33. 33.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
35. 35.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
36. 36.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
37. 37.True or false: a laptop runs one small program. (a) False (b) True
38. 38.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a TV remote (d) a plain wall switch
39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
40. 40.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop

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