Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 745 · 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 power LED? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) restarts the program
2. 2.Which of these usually has a microcontroller inside? (a) a TV remote (b) a candle (c) a wind-up toy (d) a bicycle bell
3. 3.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
4. 4.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
5. 5.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the voltage regulator (c) the reset button (d) the power LED
6. 6.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) uploaded over USB (d) typed on the chip
7. 7.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
8. 8.True or false: a TV remote has no microcontroller inside. (a) True (b) False
9. 9.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
10. 10.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a digital alarm clock (d) a spinning top
11. 11.True or false: a smart watch has no microcontroller inside. (a) False (b) True
12. 12.True or false: a microcontroller needs much more power. (a) True (b) False
13. 13.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
14. 14.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
15. 15.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) USB or a 9 V battery (d) bare mains wires
16. 16.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a wind-up toy (d) a digital alarm clock
17. 17.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
18. 18.Which of these has no microcontroller inside? (a) a microwave oven (b) a candle (c) a digital thermometer (d) a washing machine
19. 19.Which job is done by the pins? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
20. 20.True or false: a microcontroller uses very little power. (a) False (b) True
21. 21.True or false: a laptop has no screen of its own. (a) False (b) True
22. 22.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
23. 23.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
24. 24.Which of these has no microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a washing machine (d) a microwave oven
25. 25.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
26. 26.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
27. 27.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
28. 28.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a washing machine (d) a smart watch
29. 29.True or false: a candle usually has a microcontroller inside. (a) False (b) True
30. 30.Which job is done by the main chip? (a) shows the board is on (b) keeps the voltage steady (c) runs the program (d) restarts the program
31. 31.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
32. 32.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
33. 33.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the main chip (d) the USB port
34. 34.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
36. 36.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the voltage regulator (d) the reset button
37. 37.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
38. 38.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
39. 39.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
40. 40.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a plain wall switch (d) a digital thermometer

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