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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 443 · 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.Which job is done by the power LED? (a) shows the board is on (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  2. 2.True or false: a laptop runs many apps at once. (a) True (b) False
  3. 3.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  4. 4.True or false: a microcontroller uses very little power. (a) False (b) True
  5. 5.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the USB port (c) the reset button (d) the pins
  6. 6.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  7. 7.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  8. 8.Which job is done by the pins? (a) keeps the voltage steady (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  9. 9.Which of these usually has a microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a plain wall switch (d) a wind-up toy
  10. 10.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  13. 13.True or false: a laptop uses very little power. (a) True (b) False
  14. 14.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a digital thermometer (d) a hand pump
  15. 15.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) runs the program
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the USB port (d) the pins
  17. 17.Which job is done by the USB port? (a) keeps the voltage steady (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  18. 18.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it deletes itself (d) it starts again
  19. 19.Which job is done by the reset button? (a) shows the board is on (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  20. 20.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  21. 21.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a microwave oven (d) a smart watch
  22. 22.True or false: a laptop has a built-in keyboard. (a) True (b) False
  23. 23.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the reset button (d) the pins
  24. 24.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the power LED (d) the resistor
  25. 25.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  26. 26.Which job is done by the voltage regulator? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  27. 27.🤖 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
  28. 28.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  29. 29.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a washing machine (d) a spinning top
  31. 31.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  32. 32.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  34. 34.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  35. 35.Which of these usually has a microcontroller inside? (a) a smart watch (b) a plain wall switch (c) a bicycle bell (d) a wind-up toy
  36. 36.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  37. 37.Which of these has no microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a digital thermometer (d) a TV remote
  38. 38.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  39. 39.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which of these has no microcontroller inside? (a) a spinning top (b) a microwave oven (c) a digital thermometer (d) a washing machine

Answer key

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

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