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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 234 · 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 plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) the board breaks (d) it deletes itself
  5. 5.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  8. 8.Which job is done by the voltage regulator? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  9. 9.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the pins (c) the reset button (d) the voltage regulator
  10. 10.True or false: a microcontroller needs much more power. (a) True (b) False
  11. 11.🤖 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
  12. 12.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  13. 13.Which of these has no microcontroller inside? (a) a toy robot (b) a hand pump (c) a TV remote (d) a digital thermometer
  14. 14.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  15. 15.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a microwave oven (d) a candle
  16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  17. 17.True or false: a microcontroller runs many apps at once. (a) False (b) True
  18. 18.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  20. 20.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a laptop has a built-in keyboard. (a) False (b) True
  22. 22.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a washing machine (d) a smart watch
  23. 23.True or false: a laptop needs much more power. (a) False (b) True
  24. 24.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  25. 25.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the voltage regulator (d) the main chip
  26. 26.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  27. 27.True or false: a laptop runs many apps at once. (a) False (b) True
  28. 28.Which job is done by the power LED? (a) shows the board is on (b) keeps the voltage steady (c) restarts the program (d) brings power and code
  29. 29.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a TV remote
  30. 30.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  31. 31.True or false: a laptop has no screen of its own. (a) True (b) False
  32. 32.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  33. 33.True or false: a laptop runs one small program. (a) False (b) True
  34. 34.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a digital thermometer (d) a wind-up toy
  35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  36. 36.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  38. 38.True or false: a candle has no microcontroller inside. (a) False (b) True
  39. 39.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the pins (c) the main chip (d) the reset button
  40. 40.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the reset button (d) the main chip

Answer key

  1. No
  2. Yes
  3. Yes
  4. it starts again
  5. No
  6. Yes
  7. microcontroller
  8. keeps the voltage steady
  9. the reset button
  10. False
  11. flash memory
  12. Yes
  13. a hand pump
  14. True
  15. a microwave oven
  16. laptop
  17. False
  18. No
  19. laptop
  20. No
  21. True
  22. a plain wall switch
  23. True
  24. False
  25. the main chip
  26. True
  27. True
  28. shows the board is on
  29. a TV remote
  30. connect sensors and LEDs
  31. False
  32. a computer on one chip
  33. False
  34. a wind-up toy
  35. microcontroller
  36. True
  37. microcontroller
  38. True
  39. the voltage regulator
  40. the USB port

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