Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 759 · 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.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
2. 2.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
3. 3.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) it deletes itself (d) the board breaks
4. 4.True or false: a laptop has no screen of its own. (a) False (b) True
5. 5.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
6. 6.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
8. 8.Which job is done by the voltage regulator? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
9. 9.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
10. 10.True or false: a washing machine has no microcontroller inside. (a) False (b) True
11. 11.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
12. 12.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the power LED (d) the reset button
13. 13.True or false: a microcontroller needs much more power. (a) True (b) False
14. 14.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
15. 15.True or false: a laptop uses very little power. (a) False (b) True
16. 16.True or false: a laptop has a built-in keyboard. (a) True (b) False
17. 17.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the reset button (c) the power LED (d) the pins
18. 18.True or false: a microcontroller runs many apps at once. (a) False (b) True
19. 19.Which job is done by the reset button? (a) restarts the program (b) runs the program (c) brings power and code (d) keeps the voltage steady
20. 20.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a digital thermometer (d) a spinning top
21. 21.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
22. 22.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a spinning top (d) a digital thermometer
23. 23.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) a 230 V cable (d) USB or a 9 V battery
24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the power LED (c) the reset button (d) the voltage regulator
25. 25.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
26. 26.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a digital thermometer (d) a washing machine
27. 27.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
28. 28.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
29. 29.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a digital alarm clock (d) a bicycle bell
30. 30.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a digital alarm clock (d) a wind-up toy
31. 31.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the pins (d) the voltage regulator
32. 32.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
33. 33.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a candle (d) a washing machine
34. 34.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a microwave oven (d) a candle
35. 35.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a wind-up toy (d) a toy robot
36. 36.True or false: a microcontroller uses very little power. (a) False (b) True
37. 37.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
38. 38.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
39. 39.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
40. 40.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No

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