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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 444 · 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 power LED (b) the voltage regulator (c) the pins (d) the USB port
  2. 2.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a washing machine (d) a plain wall switch
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  4. 4.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  7. 7.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a candle (d) a washing machine
  8. 8.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) shows the board is on
  9. 9.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  11. 11.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a TV remote (d) a plain wall switch
  12. 12.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  13. 13.Which job is done by the pins? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  14. 14.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  16. 16.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the USB port (d) the main chip
  19. 19.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the voltage regulator (c) the main chip (d) the pins
  20. 20.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  21. 21.True or false: a laptop runs one small program. (a) True (b) False
  22. 22.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  23. 23.🤖 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
  24. 24.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  26. 26.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  27. 27.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  28. 28.True or false: a laptop needs much more power. (a) False (b) True
  29. 29.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the voltage regulator (d) the reset button
  30. 30.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  31. 31.Which of these usually has a microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a plain wall switch (d) a spinning top
  32. 32.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  33. 33.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  34. 34.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a wind-up toy (d) a toy robot
  35. 35.True or false: a laptop uses very little power. (a) False (b) True
  36. 36.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  37. 37.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a wind-up toy (d) a spinning top
  38. 38.True or false: a microcontroller runs one small program. (a) True (b) False
  39. 39.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  40. 40.True or false: a laptop runs many apps at once. (a) False (b) True

Answer key

  1. the pins
  2. a washing machine
  3. microcontroller
  4. No
  5. No
  6. flash memory
  7. a candle
  8. runs the program
  9. Yes
  10. No
  11. a plain wall switch
  12. No
  13. connect sensors and LEDs
  14. keeps the voltage steady
  15. laptop
  16. No
  17. Yes
  18. the main chip
  19. the reset button
  20. False
  21. False
  22. True
  23. a computer on one chip
  24. Yes
  25. True
  26. False
  27. False
  28. True
  29. the voltage regulator
  30. microcontroller
  31. a smart watch
  32. True
  33. Yes
  34. a toy robot
  35. False
  36. True
  37. a digital alarm clock
  38. True
  39. True
  40. True

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