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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 57 · 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 digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  2. 2.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the main chip (d) the power LED
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  5. 5.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the main chip (d) the reset button
  7. 7.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a microwave oven (d) a smart watch
  8. 8.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  9. 9.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  10. 10.Which of these has no microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a smart watch (d) a washing machine
  11. 11.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  12. 12.Which job is done by the power LED? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  14. 14.Which job is done by the pins? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
  15. 15.Which of these usually has a microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a bicycle bell (d) a candle
  16. 16.True or false: a candle has no microcontroller inside. (a) True (b) False
  17. 17.Which job is done by the reset button? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  18. 18.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  19. 19.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a plain wall switch (d) a bicycle bell
  20. 20.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  21. 21.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  22. 22.True or false: a laptop runs one small program. (a) False (b) True
  23. 23.Which of these usually has a microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a plain wall switch (d) a candle
  24. 24.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it deletes itself (d) it stops forever
  25. 25.Which of these has no microcontroller inside? (a) a microwave oven (b) a candle (c) a smart watch (d) a washing machine
  26. 26.🤖 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
  27. 27.True or false: a laptop uses very little power. (a) False (b) True
  28. 28.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  29. 29.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  30. 30.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  32. 32.True or false: a laptop has no screen of its own. (a) False (b) True
  33. 33.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  34. 34.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  35. 35.True or false: a laptop needs much more power. (a) False (b) True
  36. 36.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a smart watch (d) a bicycle bell
  37. 37.True or false: a laptop runs many apps at once. (a) False (b) True
  38. 38.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the power LED (c) the pins (d) the voltage regulator
  39. 39.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  40. 40.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True

Answer key

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

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