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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 299 · 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.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  2. 2.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a toy robot (d) a plain wall switch
  3. 3.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the pins (d) the main chip
  4. 4.True or false: a microcontroller uses very little power. (a) False (b) True
  5. 5.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the reset button (d) the power LED
  7. 7.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  8. 8.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the main chip (c) the reset button (d) the power LED
  12. 12.True or false: a microcontroller runs many apps at once. (a) True (b) False
  13. 13.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a wind-up toy (d) a digital alarm clock
  14. 14.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  15. 15.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) keeps the voltage steady
  16. 16.Which job is done by the USB port? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
  17. 17.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a bicycle bell (d) a plain wall switch
  18. 18.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a candle (d) a microwave oven
  19. 19.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the reset button (d) the voltage regulator
  20. 20.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
  21. 21.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  22. 22.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  23. 23.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the reset button (d) the pins
  24. 24.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
  25. 25.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  26. 26.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  27. 27.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a plain wall switch (d) a TV remote
  28. 28.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  29. 29.True or false: a microcontroller needs much more power. (a) True (b) False
  30. 30.True or false: a candle has no microcontroller inside. (a) False (b) True
  31. 31.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  32. 32.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a smart watch (d) a bicycle bell
  33. 33.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  34. 34.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  35. 35.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a candle (d) a digital thermometer
  36. 36.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a smart watch (d) a hand pump
  37. 37.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  38. 38.True or false: a microcontroller runs one small program. (a) True (b) False
  39. 39.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True

Answer key

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

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