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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 273 · 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 part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the reset button (d) the pins
  2. 2.True or false: a laptop runs many apps at once. (a) True (b) False
  3. 3.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the USB port (c) the voltage regulator (d) the power LED
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  7. 7.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  8. 8.True or false: a laptop has a built-in keyboard. (a) True (b) False
  9. 9.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a smart watch (d) a candle
  10. 10.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the power LED (d) the reset button
  11. 11.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  12. 12.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a digital alarm clock (d) a hand pump
  13. 13.🤖 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
  14. 14.True or false: a laptop needs much more power. (a) True (b) False
  15. 15.Which job is done by the power LED? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  16. 16.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
  17. 17.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  18. 18.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  19. 19.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  20. 20.True or false: a microcontroller uses very little power. (a) False (b) True
  21. 21.True or false: a microcontroller runs one small program. (a) True (b) False
  22. 22.Which job is done by the reset button? (a) brings power and code (b) runs the program (c) restarts the program (d) keeps the voltage steady
  23. 23.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  25. 25.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  26. 26.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  27. 27.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip
  28. 28.True or false: a laptop uses very little power. (a) True (b) False
  29. 29.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  30. 30.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  31. 31.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a wind-up toy (d) a washing machine
  32. 32.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  33. 33.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the reset button (c) the voltage regulator (d) the main chip
  34. 34.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  35. 35.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a hand pump (d) a microwave oven
  36. 36.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a spinning top (c) a hand pump (d) a candle
  37. 37.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  38. 38.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a toy robot (d) a bicycle bell
  39. 39.True or false: a laptop runs one small program. (a) False (b) True
  40. 40.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True

Answer key

  1. the pins
  2. True
  3. False
  4. the voltage regulator
  5. microcontroller
  6. No
  7. No
  8. True
  9. a smart watch
  10. the power LED
  11. microcontroller
  12. a digital alarm clock
  13. uploaded over USB
  14. True
  15. shows the board is on
  16. the USB port
  17. microcontroller
  18. laptop
  19. True
  20. True
  21. True
  22. restarts the program
  23. No
  24. False
  25. connect sensors and LEDs
  26. keeps the voltage steady
  27. a computer on one chip
  28. False
  29. True
  30. Yes
  31. a washing machine
  32. flash memory
  33. the main chip
  34. False
  35. a hand pump
  36. a microwave oven
  37. False
  38. a bicycle bell
  39. False
  40. True

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