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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 607 · 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.Which job is done by the main chip? (a) runs the program (b) brings power and code (c) shows the board is on (d) restarts the program
  2. 2.True or false: a laptop has a built-in keyboard. (a) True (b) False
  3. 3.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  4. 4.True or false: a microcontroller runs many apps at once. (a) True (b) False
  5. 5.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  7. 7.Which of these has no microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a TV remote (d) a digital thermometer
  8. 8.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) typed on the chip (d) drawn with a pen
  9. 9.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the voltage regulator (c) the power LED (d) the pins
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  13. 13.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a kind of bulb (d) a big desktop computer
  14. 14.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  16. 16.Which job is done by the voltage regulator? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  17. 17.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a laptop runs many apps at once. (a) False (b) True
  20. 20.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  21. 21.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  22. 22.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  23. 23.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  24. 24.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  25. 25.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a candle (c) a plain wall switch (d) a bicycle bell
  26. 26.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  27. 27.Which of these has no microcontroller inside? (a) a digital thermometer (b) a digital alarm clock (c) a washing machine (d) a wind-up toy
  28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the voltage regulator (d) the reset button
  29. 29.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a candle (d) a TV remote
  30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  31. 31.🤖 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
  32. 32.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the power LED (d) the reset button
  33. 33.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  34. 34.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  35. 35.True or false: a microcontroller runs one small program. (a) False (b) True
  36. 36.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  37. 37.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  38. 38.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  39. 39.Which job is done by the power LED? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) restarts the program
  40. 40.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the voltage regulator (d) the reset button

Answer key

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

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