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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 85 · 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 microcontroller uses very little power. (a) True (b) False
  2. 2.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a candle (d) a washing machine
  3. 3.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a microwave oven (d) a bicycle bell
  4. 4.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  5. 5.Which job is done by the power LED? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  6. 6.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  7. 7.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  8. 8.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  9. 9.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a TV remote (d) a plain wall switch
  10. 10.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  11. 11.True or false: a laptop needs much more power. (a) False (b) True
  12. 12.True or false: a microcontroller runs one small program. (a) False (b) True
  13. 13.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a microwave oven (d) a TV remote
  14. 14.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a smart watch (d) a wind-up toy
  15. 15.True or false: a microcontroller has no screen of its own. (a) True (b) False
  16. 16.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) brings power and code (d) runs the program
  17. 17.Which of these usually has a microcontroller inside? (a) a candle (b) a TV remote (c) a spinning top (d) a bicycle bell
  18. 18.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
  19. 19.Which job is done by the voltage regulator? (a) runs the program (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  21. 21.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  22. 22.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  23. 23.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  24. 24.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
  26. 26.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  27. 27.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the pins (d) the voltage regulator
  28. 28.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the pins (c) the voltage regulator (d) the power LED
  29. 29.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  30. 30.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the main chip (c) the voltage regulator (d) the pins
  31. 31.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  32. 32.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  34. 34.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the pins (d) the power LED
  35. 35.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a plain wall switch (d) a smart watch
  36. 36.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  37. 37.True or false: a microcontroller runs many apps at once. (a) True (b) False
  38. 38.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  39. 39.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) connect sensors and LEDs
  40. 40.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on

Answer key

  1. True
  2. a candle
  3. a microwave oven
  4. True
  5. shows the board is on
  6. a computer on one chip
  7. microcontroller
  8. False
  9. a plain wall switch
  10. True
  11. True
  12. True
  13. a bicycle bell
  14. a wind-up toy
  15. True
  16. restarts the program
  17. a TV remote
  18. uploaded over USB
  19. keeps the voltage steady
  20. microcontroller
  21. False
  22. False
  23. No
  24. No
  25. flash memory
  26. microcontroller
  27. the pins
  28. the power LED
  29. False
  30. the voltage regulator
  31. laptop
  32. Yes
  33. laptop
  34. the USB port
  35. a smart watch
  36. laptop
  37. False
  38. Yes
  39. brings power and code
  40. connect sensors and LEDs

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