Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 672 · 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 of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a bicycle bell (d) a digital alarm clock
2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
3. 3.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a washing machine (d) a candle
4. 4.Which of these has no microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a smart watch (d) a washing machine
5. 5.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
6. 6.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
7. 7.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
9. 9.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
10. 10.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
11. 11.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
12. 12.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a TV remote (d) a bicycle bell
13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
14. 14.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
15. 15.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the main chip (d) the reset button
16. 16.True or false: a hand pump has no microcontroller inside. (a) False (b) True
17. 17.True or false: a laptop uses very little power. (a) True (b) False
18. 18.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
19. 19.Which job is done by the pins? (a) runs the program (b) keeps the voltage steady (c) shows the board is on (d) connect sensors and LEDs
20. 20.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
21. 21.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a microwave oven (d) a bicycle bell
22. 22.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
23. 23.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a washing machine (d) a wind-up toy
24. 24.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a washing machine (d) a hand pump
25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
26. 26.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a candle (c) a wind-up toy (d) a bicycle bell
27. 27.Which job is done by the reset button? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
28. 28.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
29. 29.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the reset button (c) the USB port (d) the pins
30. 30.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
31. 31.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
32. 32.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the main chip (c) the pins (d) the power LED
33. 33.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the reset button (c) the power LED (d) the voltage regulator
34. 34.Which of these usually has a microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a bicycle bell (d) a hand pump
35. 35.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
36. 36.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a digital thermometer (d) a spinning top
37. 37.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a plain wall switch (d) a TV remote
38. 38.Which job is done by the main chip? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) runs the program
39. 39.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
40. 40.True or false: a candle usually has a microcontroller inside. (a) True (b) False

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