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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 365 · 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 smart watch usually have a microcontroller inside? (a) No (b) Yes
  2. 2.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  3. 3.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  5. 5.True or false: a microcontroller runs one small program. (a) True (b) False
  6. 6.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the USB port (d) the pins
  7. 7.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  8. 8.Which job is done by the USB port? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  9. 9.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  10. 10.True or false: a laptop has a built-in keyboard. (a) True (b) False
  11. 11.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a hand pump (d) a toy robot
  12. 12.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the main chip (c) the voltage regulator (d) the pins
  14. 14.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a bicycle bell (d) a toy robot
  15. 15.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a plain wall switch (d) a TV remote
  16. 16.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the power LED (c) the USB port (d) the pins
  18. 18.Which of these has no microcontroller inside? (a) a TV remote (b) a spinning top (c) a smart watch (d) a toy robot
  19. 19.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the main chip (d) the USB port
  20. 20.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  21. 21.True or false: a laptop uses very little power. (a) False (b) True
  22. 22.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  23. 23.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the power LED (c) the main chip (d) the voltage regulator
  25. 25.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  26. 26.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the pins (d) the voltage regulator
  27. 27.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  28. 28.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) uploaded over USB (d) typed on the chip
  29. 29.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) restarts the program
  30. 30.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  31. 31.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  32. 32.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  33. 33.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  34. 34.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a washing machine (d) a wind-up toy
  35. 35.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  36. 36.Which of these usually has a microcontroller inside? (a) a candle (b) a digital thermometer (c) a spinning top (d) a hand pump
  37. 37.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  38. 38.True or false: a laptop needs much more power. (a) False (b) True
  39. 39.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a candle (c) a wind-up toy (d) a hand pump
  40. 40.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a candle (d) a wind-up toy

Answer key

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

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