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Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. it starts again
  2. a computer on one chip
  3. microcontroller
  4. Yes
  5. False
  6. False
  7. flash memory
  8. laptop
  9. False
  10. True
  11. False
  12. Yes
  13. Yes
  14. the voltage regulator
  15. a washing machine
  16. False
  17. True
  18. a bicycle bell
  19. the USB port
  20. laptop
  21. False
  22. Yes
  23. uploaded over USB
  24. a smart watch
  25. runs the program
  26. the pins
  27. keeps the voltage steady
  28. True
  29. restarts the program
  30. a digital thermometer
  31. the reset button
  32. True
  33. True
  34. microcontroller
  35. True
  36. True
  37. a hand pump
  38. No
  39. No
  40. True

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