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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 63 · 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 of these usually has a microcontroller inside? (a) a smart watch (b) a candle (c) a wind-up toy (d) a hand pump
  2. 2.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the USB port (d) the pins
  3. 3.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  4. 4.True or false: a laptop runs many apps at once. (a) True (b) False
  5. 5.Which job is done by the voltage regulator? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) brings power and code
  6. 6.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  9. 9.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  10. 10.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  11. 11.Which of these has no microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a microwave oven (d) a digital alarm clock
  12. 12.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a washing machine (d) a plain wall switch
  13. 13.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  14. 14.Which job is done by the power LED? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) shows the board is on
  15. 15.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the main chip (c) the reset button (d) the pins
  18. 18.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  19. 19.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  20. 20.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  21. 21.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  22. 22.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
  24. 24.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the USB port (d) the voltage regulator
  25. 25.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  26. 26.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  27. 27.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  28. 28.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  29. 29.True or false: a microcontroller runs many apps at once. (a) False (b) True
  30. 30.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
  31. 31.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  32. 32.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) the power LED (d) flash memory
  33. 33.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  34. 34.True or false: a microcontroller runs one small program. (a) False (b) True
  35. 35.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  36. 36.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  37. 37.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  39. 39.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a laptop has a built-in keyboard. (a) False (b) True

Answer key

  1. a smart watch
  2. the pins
  3. True
  4. True
  5. keeps the voltage steady
  6. Yes
  7. No
  8. Yes
  9. connect sensors and LEDs
  10. a computer on one chip
  11. a wind-up toy
  12. a plain wall switch
  13. microcontroller
  14. shows the board is on
  15. No
  16. False
  17. the main chip
  18. True
  19. False
  20. True
  21. True
  22. Yes
  23. the USB port
  24. the power LED
  25. True
  26. laptop
  27. False
  28. No
  29. False
  30. uploaded over USB
  31. True
  32. flash memory
  33. microcontroller
  34. True
  35. False
  36. laptop
  37. Yes
  38. laptop
  39. No
  40. True

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