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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 596 · 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 part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the power LED (d) the pins
  2. 2.True or false: a laptop needs much more power. (a) False (b) True
  3. 3.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a hand pump (d) a wind-up toy
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  5. 5.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a hand pump (d) a microwave oven
  6. 6.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the power LED (d) the voltage regulator
  7. 7.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  8. 8.True or false: a laptop uses very little power. (a) False (b) True
  9. 9.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a TV remote (d) a candle
  10. 10.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) typed on the chip (d) drawn with a pen
  11. 11.True or false: a microcontroller uses very little power. (a) True (b) False
  12. 12.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
  13. 13.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
  14. 14.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a bicycle bell (d) a digital thermometer
  15. 15.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) restarts the program
  16. 16.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  17. 17.True or false: a microcontroller has no screen of its own. (a) True (b) False
  18. 18.True or false: a laptop runs many apps at once. (a) True (b) False
  19. 19.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) brings power and code
  20. 20.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  21. 21.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  22. 22.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  23. 23.True or false: a laptop has no screen of its own. (a) False (b) True
  24. 24.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  25. 25.Which of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a digital alarm clock (d) a toy robot
  26. 26.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  27. 27.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  28. 28.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  29. 29.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the USB port (d) the voltage regulator
  30. 30.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the USB port (d) the pins
  31. 31.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  32. 32.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  33. 33.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a laptop has a built-in keyboard. (a) False (b) True
  35. 35.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  36. 36.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the power LED (c) the USB port (d) the main chip
  37. 37.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  38. 38.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  39. 39.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  40. 40.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. the USB port
  2. True
  3. a smart watch
  4. microcontroller
  5. a microwave oven
  6. the power LED
  7. No
  8. False
  9. a TV remote
  10. uploaded over USB
  11. True
  12. flash memory
  13. a computer on one chip
  14. a digital thermometer
  15. keeps the voltage steady
  16. True
  17. True
  18. True
  19. restarts the program
  20. True
  21. runs the program
  22. Yes
  23. False
  24. laptop
  25. a candle
  26. laptop
  27. microcontroller
  28. Yes
  29. the pins
  30. the voltage regulator
  31. True
  32. False
  33. False
  34. True
  35. brings power and code
  36. the reset button
  37. False
  38. Yes
  39. False
  40. Yes

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