Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 122 · 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 reset button? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
2. 2.True or false: a laptop has no screen of its own. (a) False (b) True
3. 3.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
4. 4.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
6. 6.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a smart watch (d) a candle
7. 7.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
8. 8.Which job is done by the power LED? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
9. 9.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
10. 10.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
13. 13.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
15. 15.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the pins (d) the main chip
16. 16.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a smart watch (c) a hand pump (d) a wind-up toy
17. 17.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
18. 18.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the reset button (d) the pins
19. 19.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
20. 20.True or false: a laptop has a built-in keyboard. (a) True (b) False
21. 21.True or false: a TV remote has no microcontroller inside. (a) False (b) True
22. 22.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
24. 24.True or false: a microcontroller has no screen of its own. (a) False (b) True
25. 25.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
26. 26.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
27. 27.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
28. 28.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a spinning top (d) a TV remote
29. 29.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
30. 30.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
31. 31.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a spinning top (d) a hand pump
32. 32.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
34. 34.True or false: a laptop runs many apps at once. (a) True (b) False
35. 35.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
36. 36.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
37. 37.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
38. 38.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the pins (d) the reset button
39. 39.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
40. 40.True or false: a laptop uses very little power. (a) True (b) False

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