Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 643 · 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 needs much more power? (a) laptop (b) microcontroller
2. 2.Which job is done by the pins? (a) shows the board is on (b) runs the program (c) brings power and code (d) connect sensors and LEDs
3. 3.True or false: a microcontroller runs many apps at once. (a) False (b) True
4. 4.Which job is done by the voltage regulator? (a) shows the board is on (b) keeps the voltage steady (c) brings power and code (d) restarts the program
5. 5.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) a wall socket directly (d) bare mains wires
6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the main chip (d) the power LED
7. 7.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the pins (c) the USB port (d) the voltage regulator
8. 8.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the power LED (c) the reset button (d) the USB port
9. 9.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
10. 10.Which of these has no microcontroller inside? (a) a toy robot (b) a digital thermometer (c) a microwave oven (d) a hand pump
11. 11.True or false: a candle usually has a microcontroller inside. (a) True (b) False
12. 12.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the reset button (d) the main chip
13. 13.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
14. 14.True or false: a laptop runs many apps at once. (a) False (b) True
15. 15.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a type of battery (d) a kind of bulb
16. 16.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a candle (d) a microwave oven
17. 17.Which job is done by the main chip? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) runs the program
18. 18.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
19. 19.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
20. 20.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the voltage regulator (d) the power LED
21. 21.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a washing machine (d) a plain wall switch
22. 22.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a spinning top (d) a smart watch
23. 23.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a candle (d) a bicycle bell
24. 24.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
25. 25.True or false: a smart watch has no microcontroller inside. (a) True (b) False
26. 26.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
27. 27.True or false: a microcontroller has no screen of its own. (a) False (b) True
28. 28.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
29. 29.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
30. 30.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a TV remote (d) a plain wall switch
31. 31.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a smart watch (d) a spinning top
32. 32.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
33. 33.Which of these has no microcontroller inside? (a) a toy robot (b) a digital thermometer (c) a washing machine (d) a wind-up toy
34. 34.True or false: a microcontroller uses very little power. (a) True (b) False
35. 35.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
36. 36.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
37. 37.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a microwave oven (d) a bicycle bell
38. 38.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a candle (d) a digital thermometer
39. 39.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
40. 40.True or false: a microcontroller has a built-in keyboard. (a) False (b) True

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