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Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. True
  2. the reset button
  3. a computer on one chip
  4. Yes
  5. a digital alarm clock
  6. flash memory
  7. connect sensors and LEDs
  8. restarts the program
  9. the pins
  10. the voltage regulator
  11. True
  12. False
  13. uploaded over USB
  14. keeps the voltage steady
  15. the main chip
  16. True
  17. False
  18. the USB port
  19. microcontroller
  20. True
  21. a plain wall switch
  22. a toy robot
  23. brings power and code
  24. laptop
  25. a microwave oven
  26. False
  27. runs the program
  28. True
  29. microcontroller
  30. laptop
  31. False
  32. a candle
  33. a smart watch
  34. shows the board is on
  35. True
  36. microcontroller
  37. a digital thermometer
  38. laptop
  39. Yes
  40. False

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