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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 393 · 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 spinning top usually have a microcontroller inside? (a) No (b) Yes
  2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  3. 3.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  4. 4.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) the power LED (d) flash memory
  5. 5.True or false: a microcontroller needs much more power. (a) False (b) True
  6. 6.Which of these has no microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a TV remote (d) a washing machine
  7. 7.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the main chip (d) the voltage regulator
  8. 8.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  9. 9.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  10. 10.True or false: a microcontroller has no screen of its own. (a) False (b) True
  11. 11.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the USB port (d) the reset button
  13. 13.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  14. 14.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  17. 17.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  18. 18.True or false: a microcontroller uses very little power. (a) True (b) False
  19. 19.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  20. 20.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the reset button (c) the voltage regulator (d) the USB port
  21. 21.True or false: a microcontroller runs many apps at once. (a) True (b) False
  22. 22.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a digital alarm clock (d) a spinning top
  23. 23.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) runs the program
  24. 24.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a bicycle bell (d) a toy robot
  25. 25.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  26. 26.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  27. 27.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the pins (d) the main chip
  28. 28.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  29. 29.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a bicycle bell (d) a digital thermometer
  30. 30.True or false: a laptop needs much more power. (a) False (b) True
  31. 31.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a candle (d) a smart watch
  32. 32.True or false: a microcontroller runs one small program. (a) True (b) False
  33. 33.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a washing machine (d) a plain wall switch
  34. 34.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
  35. 35.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a wind-up toy (d) a toy robot
  36. 36.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  39. 39.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  40. 40.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller

Answer key

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

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