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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 656 · 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.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  2. 2.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the USB port (c) the pins (d) the power LED
  3. 3.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the pins (d) the USB port
  5. 5.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a washing machine (d) a wind-up toy
  6. 6.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  7. 7.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  8. 8.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  9. 9.Which of these has no microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a digital alarm clock (d) a TV remote
  10. 10.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a kind of bulb (d) a big desktop computer
  11. 11.True or false: a laptop needs much more power. (a) True (b) False
  12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the power LED (c) the pins (d) the reset button
  13. 13.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  15. 15.True or false: a microcontroller uses very little power. (a) True (b) False
  16. 16.True or false: a laptop runs many apps at once. (a) False (b) True
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  18. 18.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a bicycle bell (d) a digital thermometer
  19. 19.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a hand pump (d) a spinning top
  20. 20.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  21. 21.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  22. 22.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the main chip (d) the voltage regulator
  23. 23.True or false: a microcontroller runs one small program. (a) True (b) False
  24. 24.Which job is done by the reset button? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  25. 25.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  26. 26.True or false: a laptop runs one small program. (a) True (b) False
  27. 27.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  29. 29.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a washing machine (d) a wind-up toy
  30. 30.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  32. 32.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  33. 33.Which job is done by the pins? (a) brings power and code (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  34. 34.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  35. 35.True or false: a candle has no microcontroller inside. (a) False (b) True
  36. 36.Which job is done by the USB port? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  37. 37.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  38. 38.Which of these has no microcontroller inside? (a) a candle (b) a digital alarm clock (c) a microwave oven (d) a washing machine
  39. 39.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a digital alarm clock (d) a plain wall switch
  40. 40.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a wind-up toy (d) a bicycle bell

Answer key

  1. laptop
  2. the power LED
  3. False
  4. the voltage regulator
  5. a wind-up toy
  6. Yes
  7. True
  8. False
  9. a bicycle bell
  10. a computer on one chip
  11. True
  12. the reset button
  13. No
  14. microcontroller
  15. True
  16. True
  17. uploaded over USB
  18. a digital thermometer
  19. a microwave oven
  20. False
  21. No
  22. the USB port
  23. True
  24. restarts the program
  25. Yes
  26. False
  27. Yes
  28. No
  29. a washing machine
  30. No
  31. it starts again
  32. flash memory
  33. connect sensors and LEDs
  34. keeps the voltage steady
  35. True
  36. brings power and code
  37. microcontroller
  38. a candle
  39. a plain wall switch
  40. a toy robot

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