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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 244 · 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.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  3. 3.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  5. 5.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the USB port (d) the main chip
  6. 6.True or false: a laptop runs one small program. (a) False (b) True
  7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  8. 8.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  9. 9.Which of these has no microcontroller inside? (a) a TV remote (b) a toy robot (c) a candle (d) a digital alarm clock
  10. 10.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  12. 12.True or false: a microcontroller uses very little power. (a) False (b) True
  13. 13.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a washing machine (d) a wind-up toy
  14. 14.True or false: a laptop uses very little power. (a) True (b) False
  15. 15.True or false: a laptop has a built-in keyboard. (a) False (b) True
  16. 16.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  17. 17.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  18. 18.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  19. 19.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a wind-up toy (d) a plain wall switch
  20. 20.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  21. 21.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  25. 25.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  26. 26.Which job is done by the USB port? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  27. 27.True or false: a laptop has no screen of its own. (a) False (b) True
  28. 28.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  29. 29.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  31. 31.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a smart watch (d) a wind-up toy
  32. 32.True or false: a microcontroller runs one small program. (a) False (b) True
  33. 33.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  35. 35.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the power LED (c) the USB port (d) the main chip
  36. 36.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  37. 37.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  38. 38.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. False
  2. True
  3. No
  4. a computer on one chip
  5. the voltage regulator
  6. False
  7. USB or a 9 V battery
  8. True
  9. a candle
  10. No
  11. laptop
  12. True
  13. a wind-up toy
  14. False
  15. True
  16. Yes
  17. False
  18. uploaded over USB
  19. a microwave oven
  20. False
  21. True
  22. Yes
  23. Yes
  24. laptop
  25. connect sensors and LEDs
  26. brings power and code
  27. False
  28. Yes
  29. No
  30. microcontroller
  31. a smart watch
  32. True
  33. True
  34. True
  35. the main chip
  36. False
  37. True
  38. flash memory
  39. Yes
  40. No

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