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Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. No
  2. True
  3. False
  4. True
  5. False
  6. False
  7. the USB port
  8. restarts the program
  9. a bicycle bell
  10. laptop
  11. False
  12. a computer on one chip
  13. the power LED
  14. False
  15. False
  16. the reset button
  17. connect sensors and LEDs
  18. Yes
  19. No
  20. False
  21. Yes
  22. runs the program
  23. No
  24. the pins
  25. keeps the voltage steady
  26. True
  27. a TV remote
  28. it starts again
  29. False
  30. laptop
  31. Yes
  32. a digital thermometer
  33. shows the board is on
  34. True
  35. uploaded over USB
  36. a candle
  37. microcontroller
  38. a plain wall switch
  39. a digital alarm clock
  40. True

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