Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 749 · 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 voltage regulator? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
2. 2.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
3. 3.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
5. 5.True or false: a smart watch has no microcontroller inside. (a) True (b) False
6. 6.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a candle (d) a washing machine
7. 7.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
8. 8.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
9. 9.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) restarts the program
10. 10.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
11. 11.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
12. 12.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
13. 13.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) uploaded over USB (d) drawn with a pen
14. 14.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a spinning top (d) a bicycle bell
15. 15.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
16. 16.True or false: a microcontroller runs one small program. (a) False (b) True
17. 17.True or false: a microcontroller runs many apps at once. (a) True (b) False
18. 18.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
19. 19.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a spinning top (d) a smart watch
20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
21. 21.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
22. 22.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
23. 23.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
24. 24.Which job is done by the USB port? (a) shows the board is on (b) runs the program (c) brings power and code (d) restarts the program
25. 25.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
26. 26.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the main chip (d) the power LED
27. 27.Which of these has no microcontroller inside? (a) a hand pump (b) a microwave oven (c) a smart watch (d) a digital thermometer
28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the pins (d) the power LED
29. 29.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
30. 30.True or false: a toy robot has no microcontroller inside. (a) True (b) False
31. 31.Which job is done by the power LED? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) shows the board is on
32. 32.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
33. 33.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly
34. 34.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
35. 35.Which of these has no microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a smart watch (d) a washing machine
36. 36.Which of these has no microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a TV remote (d) a digital alarm clock
37. 37.True or false: a laptop has a built-in keyboard. (a) True (b) False
38. 38.True or false: a microcontroller needs much more power. (a) True (b) False
39. 39.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
40. 40.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a microwave oven (d) a hand pump

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