Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 458 · 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) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
2. 2.True or false: a laptop needs much more power. (a) False (b) True
3. 3.True or false: a laptop has a built-in keyboard. (a) True (b) False
4. 4.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
5. 5.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
6. 6.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
7. 7.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
8. 8.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
9. 9.True or false: a microcontroller runs one small program. (a) True (b) False
10. 10.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a microwave oven (d) a spinning top
11. 11.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
12. 12.True or false: a laptop runs one small program. (a) False (b) True
13. 13.Which of these has no microcontroller inside? (a) a TV remote (b) a toy robot (c) a bicycle bell (d) a microwave oven
14. 14.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
15. 15.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
16. 16.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
17. 17.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
18. 18.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
19. 19.Which job is done by the power LED? (a) keeps the voltage steady (b) runs the program (c) brings power and code (d) shows the board is on
20. 20.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the reset button (c) the voltage regulator (d) the power LED
21. 21.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
22. 22.True or false: a microcontroller uses very little power. (a) False (b) True
23. 23.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
24. 24.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
25. 25.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a digital alarm clock (d) a hand pump
26. 26.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a spinning top (d) a wind-up toy
27. 27.Which of these usually has a microcontroller inside? (a) a hand pump (b) a washing machine (c) a bicycle bell (d) a wind-up toy
28. 28.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
29. 29.Which job is done by the USB port? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
30. 30.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a big desktop computer (d) a computer on one chip
31. 31.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
32. 32.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the reset button (d) the main chip
33. 33.True or false: a smart watch has no microcontroller inside. (a) True (b) False
34. 34.True or false: a laptop uses very little power. (a) True (b) False
35. 35.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
36. 36.True or false: a laptop has no screen of its own. (a) False (b) True
37. 37.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a digital alarm clock (d) a plain wall switch
38. 38.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a toy robot (d) a wind-up toy
39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a toy robot (d) a plain wall switch
40. 40.True or false: a microcontroller has no screen of its own. (a) False (b) True

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