Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 412 · 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 uses very little power? (a) laptop (b) microcontroller
2. 2.True or false: a toy robot has no microcontroller inside. (a) False (b) True
3. 3.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
4. 4.True or false: a laptop has a built-in keyboard. (a) False (b) True
5. 5.Which job is done by the USB port? (a) restarts the program (b) runs the program (c) brings power and code (d) keeps the voltage steady
6. 6.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a spinning top (d) a digital thermometer
7. 7.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
8. 8.True or false: a laptop runs one small program. (a) False (b) True
9. 9.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
10. 10.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
11. 11.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
12. 12.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the power LED (c) the voltage regulator (d) the reset button
15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the main chip (d) the reset button
16. 16.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a big desktop computer (d) a type of battery
17. 17.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a toy robot (d) a candle
18. 18.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
19. 19.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
20. 20.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
21. 21.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
22. 22.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
23. 23.True or false: a microcontroller runs one small program. (a) True (b) False
24. 24.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
25. 25.True or false: a microcontroller needs much more power. (a) True (b) False
26. 26.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a washing machine (d) a bicycle bell
27. 27.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a microwave oven (d) a hand pump
28. 28.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) it deletes itself (d) the board breaks
29. 29.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
30. 30.True or false: a laptop uses very little power. (a) True (b) False
31. 31.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
32. 32.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
33. 33.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the pins (c) the reset button (d) the main chip
34. 34.True or false: a microcontroller runs many apps at once. (a) False (b) True
35. 35.True or false: a candle usually has a microcontroller inside. (a) False (b) True
36. 36.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the USB port (d) the power LED
37. 37.Which of these usually has a microcontroller inside? (a) a smart watch (b) a spinning top (c) a candle (d) a wind-up toy
38. 38.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a plain wall switch (d) a microwave oven
40. 40.True or false: a microwave oven has no microcontroller inside. (a) True (b) False

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