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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 201 · 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.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  2. 2.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  3. 3.Which job is done by the power LED? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) brings power and code
  4. 4.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a candle (d) a spinning top
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the reset button (d) the pins
  6. 6.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a bicycle bell (d) a digital alarm clock
  7. 7.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the pins (c) the USB port (d) the power LED
  8. 8.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  9. 9.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  10. 10.True or false: a laptop runs one small program. (a) True (b) False
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the pins
  12. 12.True or false: a microcontroller runs many apps at once. (a) True (b) False
  13. 13.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a candle (d) a smart watch
  14. 14.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  15. 15.True or false: a microcontroller needs much more power. (a) False (b) True
  16. 16.True or false: a candle has no microcontroller inside. (a) True (b) False
  17. 17.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  18. 18.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the USB port (d) the voltage regulator
  19. 19.🤖 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
  20. 20.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  21. 21.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  22. 22.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  24. 24.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  26. 26.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a washing machine (d) a candle
  28. 28.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the voltage regulator (c) the main chip (d) the pins
  29. 29.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a TV remote (d) a microwave oven
  30. 30.True or false: a microcontroller uses very little power. (a) False (b) True
  31. 31.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  32. 32.Which job is done by the reset button? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) brings power and code
  33. 33.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  34. 34.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  35. 35.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) typed on the chip (d) drawn with a pen
  36. 36.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a hand pump (d) a smart watch
  37. 37.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
  38. 38.True or false: a microcontroller has no screen of its own. (a) True (b) False
  39. 39.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a digital alarm clock (d) a spinning top
  40. 40.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. laptop
  2. False
  3. shows the board is on
  4. a washing machine
  5. the USB port
  6. a bicycle bell
  7. the voltage regulator
  8. Yes
  9. True
  10. False
  11. the main chip
  12. False
  13. a smart watch
  14. False
  15. False
  16. True
  17. microcontroller
  18. the reset button
  19. flash memory
  20. connect sensors and LEDs
  21. False
  22. Yes
  23. laptop
  24. False
  25. microcontroller
  26. No
  27. a candle
  28. the pins
  29. a wind-up toy
  30. True
  31. Yes
  32. restarts the program
  33. Yes
  34. False
  35. uploaded over USB
  36. a hand pump
  37. runs the program
  38. True
  39. a digital alarm clock
  40. Yes

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