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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 189 · 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 of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a toy robot (d) a candle
  2. 2.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the pins (d) the power LED
  4. 4.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.True or false: a microcontroller has no screen of its own. (a) False (b) True
  7. 7.Which job is done by the main chip? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) keeps the voltage steady
  8. 8.Which of these has no microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a digital alarm clock (d) a digital thermometer
  9. 9.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  10. 10.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a plain wall switch (d) a candle
  11. 11.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the power LED (d) the voltage regulator
  13. 13.True or false: a microcontroller needs much more power. (a) True (b) False
  14. 14.True or false: a microcontroller runs one small program. (a) False (b) True
  15. 15.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  16. 16.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the main chip (d) the USB port
  17. 17.🤖 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
  18. 18.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  19. 19.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a wind-up toy (d) a plain wall switch
  20. 20.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a toy robot (d) a hand pump
  21. 21.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the voltage regulator (d) the power LED
  23. 23.🤖 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
  24. 24.True or false: a laptop runs one small program. (a) False (b) True
  25. 25.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  26. 26.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  27. 27.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  28. 28.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a digital thermometer (d) a wind-up toy
  29. 29.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the pins (d) the main chip
  30. 30.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  31. 31.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  32. 32.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  33. 33.True or false: a laptop needs much more power. (a) False (b) True
  34. 34.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the USB port (d) the reset button
  35. 35.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
  36. 36.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a microwave oven (d) a wind-up toy
  37. 37.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  39. 39.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True

Answer key

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

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