Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 589 · 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.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
2. 2.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
3. 3.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a spinning top (d) a smart watch
4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the power LED (d) the reset button
5. 5.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
6. 6.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
8. 8.True or false: a candle usually has a microcontroller inside. (a) True (b) False
9. 9.True or false: a laptop has a built-in keyboard. (a) True (b) False
10. 10.True or false: a microcontroller needs much more power. (a) True (b) False
11. 11.True or false: a laptop uses very little power. (a) True (b) False
12. 12.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
13. 13.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
14. 14.True or false: a smart watch has no microcontroller inside. (a) False (b) True
15. 15.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
16. 16.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
17. 17.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
18. 18.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
19. 19.True or false: a washing machine has no microcontroller inside. (a) True (b) False
20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a microwave oven (d) a candle
21. 21.True or false: a microcontroller runs one small program. (a) True (b) False
22. 22.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
23. 23.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
24. 24.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
25. 25.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
26. 26.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
27. 27.True or false: a microcontroller has no screen of its own. (a) False (b) True
28. 28.Which job is done by the main chip? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) runs the program
29. 29.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
30. 30.Which job is done by the USB port? (a) runs the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
31. 31.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a wind-up toy (d) a TV remote
32. 32.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
33. 33.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
34. 34.True or false: a laptop runs many apps at once. (a) True (b) False
35. 35.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a wind-up toy (d) a toy robot
36. 36.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
37. 37.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
38. 38.True or false: a hand pump has no microcontroller inside. (a) True (b) False
39. 39.Which job is done by the power LED? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
40. 40.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a plain wall switch (d) a digital alarm clock

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