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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 134 · 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.

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

Answer key

  1. False
  2. laptop
  3. microcontroller
  4. the power LED
  5. restarts the program
  6. False
  7. Yes
  8. runs the program
  9. True
  10. False
  11. False
  12. it starts again
  13. Yes
  14. a toy robot
  15. No
  16. brings power and code
  17. True
  18. No
  19. No
  20. No
  21. the pins
  22. uploaded over USB
  23. True
  24. microcontroller
  25. microcontroller
  26. a spinning top
  27. a microwave oven
  28. a hand pump
  29. connect sensors and LEDs
  30. a bicycle bell
  31. laptop
  32. Yes
  33. No
  34. laptop
  35. True
  36. a wind-up toy
  37. shows the board is on
  38. False
  39. keeps the voltage steady
  40. True

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