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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 177 · 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 job is done by the USB port? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  2. 2.Which job is done by the power LED? (a) keeps the voltage steady (b) runs the program (c) shows the board is on (d) restarts the program
  3. 3.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a TV remote (d) a spinning top
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the main chip (c) the USB port (d) the pins
  5. 5.True or false: a laptop runs one small program. (a) True (b) False
  6. 6.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  7. 7.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  8. 8.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the power LED (c) the USB port (d) the reset button
  10. 10.🤖 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
  11. 11.True or false: a microcontroller runs many apps at once. (a) False (b) True
  12. 12.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  14. 14.Which of these usually has a microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a spinning top (d) a plain wall switch
  15. 15.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a wind-up toy (d) a washing machine
  16. 16.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  17. 17.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the pins (d) the main chip
  18. 18.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
  19. 19.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  20. 20.Which job is done by the pins? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  21. 21.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  23. 23.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  24. 24.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  26. 26.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which of these has no microcontroller inside? (a) a plain wall switch (b) a digital thermometer (c) a microwave oven (d) a TV remote
  28. 28.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  29. 29.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  30. 30.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  31. 31.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) the board breaks (d) it stops forever
  32. 32.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the pins (c) the USB port (d) the reset button
  33. 33.True or false: a laptop has a built-in keyboard. (a) False (b) True
  34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  35. 35.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  36. 36.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a smart watch (d) a toy robot
  37. 37.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  38. 38.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  39. 39.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a digital thermometer (d) a plain wall switch
  40. 40.True or false: a microcontroller runs one small program. (a) True (b) False

Answer key

  1. brings power and code
  2. shows the board is on
  3. a spinning top
  4. the power LED
  5. False
  6. False
  7. microcontroller
  8. Yes
  9. the pins
  10. a computer on one chip
  11. False
  12. No
  13. Yes
  14. a smart watch
  15. a washing machine
  16. False
  17. the main chip
  18. uploaded over USB
  19. Yes
  20. connect sensors and LEDs
  21. No
  22. No
  23. True
  24. True
  25. microcontroller
  26. No
  27. a plain wall switch
  28. keeps the voltage steady
  29. laptop
  30. False
  31. it starts again
  32. the USB port
  33. True
  34. No
  35. False
  36. a wind-up toy
  37. True
  38. False
  39. a digital thermometer
  40. True

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