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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 29 · 40 questions
TalentJR

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.

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

Answer key

  1. Yes
  2. True
  3. False
  4. a spinning top
  5. flash memory
  6. microcontroller
  7. True
  8. True
  9. the pins
  10. False
  11. a computer on one chip
  12. False
  13. keeps the voltage steady
  14. True
  15. a wind-up toy
  16. Yes
  17. laptop
  18. False
  19. brings power and code
  20. False
  21. a toy robot
  22. True
  23. it starts again
  24. a bicycle bell
  25. True
  26. the power LED
  27. a hand pump
  28. laptop
  29. the main chip
  30. False
  31. shows the board is on
  32. Yes
  33. False
  34. restarts the program
  35. No
  36. False
  37. a smart watch
  38. No
  39. False
  40. microcontroller

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