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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 647 · 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 washing machine usually have a microcontroller inside? (a) No (b) Yes
  2. 2.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  3. 3.Which job is done by the voltage regulator? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
  4. 4.Which of these has no microcontroller inside? (a) a microwave oven (b) a candle (c) a digital thermometer (d) a digital alarm clock
  5. 5.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the main chip (d) the voltage regulator
  6. 6.True or false: a laptop runs one small program. (a) True (b) False
  7. 7.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
  8. 8.True or false: a laptop uses very little power. (a) False (b) True
  9. 9.🤖 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
  10. 10.Which job is done by the reset button? (a) brings power and code (b) restarts the program (c) shows the board is on (d) runs the program
  11. 11.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the USB port (d) the voltage regulator
  13. 13.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the pins (d) the main chip
  16. 16.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the pins (c) the main chip (d) the USB port
  17. 17.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  18. 18.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  19. 19.True or false: a microcontroller uses very little power. (a) False (b) True
  20. 20.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  21. 21.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a spinning top (c) a candle (d) a plain wall switch
  22. 22.True or false: a microcontroller runs one small program. (a) False (b) True
  23. 23.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a bicycle bell (d) a spinning top
  24. 24.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  25. 25.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  26. 26.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  27. 27.True or false: a candle has no microcontroller inside. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  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) microcontroller (b) laptop
  31. 31.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the voltage regulator (c) the main chip (d) the reset button
  32. 32.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  33. 33.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  34. 34.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  36. 36.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  37. 37.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a microcontroller runs many apps at once. (a) True (b) False
  39. 39.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a washing machine (d) a bicycle bell
  40. 40.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False

Answer key

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

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