Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 319 · 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.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
2. 2.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
4. 4.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a plain wall switch (d) a digital alarm clock
5. 5.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
6. 6.Which of these usually has a microcontroller inside? (a) a TV remote (b) a hand pump (c) a bicycle bell (d) a wind-up toy
7. 7.True or false: a laptop runs many apps at once. (a) False (b) True
8. 8.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the main chip (c) the voltage regulator (d) the pins
9. 9.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
10. 10.Which job is done by the power LED? (a) brings power and code (b) connect sensors and LEDs (c) keeps the voltage steady (d) shows the board is on
11. 11.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
12. 12.True or false: a laptop runs one small program. (a) True (b) False
13. 13.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
14. 14.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a 230 V cable (d) a wall socket directly
15. 15.Which of these usually has a microcontroller inside? (a) a candle (b) a digital alarm clock (c) a spinning top (d) a hand pump
16. 16.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) restarts the program (d) keeps the voltage steady
17. 17.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a computer on one chip (d) a big desktop computer
18. 18.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a TV remote (d) a wind-up toy
19. 19.Which job is done by the USB port? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) brings power and code
20. 20.Which of these usually has a microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a spinning top (d) a wind-up toy
21. 21.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a bicycle bell (d) a washing machine
22. 22.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
24. 24.True or false: a laptop needs much more power. (a) False (b) True
25. 25.Which job is done by the voltage regulator? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
26. 26.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
27. 27.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
28. 28.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
29. 29.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
30. 30.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
31. 31.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
32. 32.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the power LED (d) the USB port
33. 33.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a spinning top (d) a smart watch
34. 34.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a candle (d) a microwave oven
35. 35.True or false: a hand pump has no microcontroller inside. (a) False (b) True
36. 36.True or false: a laptop has no screen of its own. (a) True (b) False
37. 37.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
38. 38.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
39. 39.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
40. 40.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a microwave oven (d) a hand pump

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