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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 662 · 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 thermometer usually have a microcontroller inside? (a) No (b) Yes
  2. 2.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  3. 3.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a bicycle bell (d) a spinning top
  4. 4.True or false: a microcontroller runs many apps at once. (a) False (b) True
  5. 5.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the USB port
  6. 6.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a bicycle bell (d) a candle
  7. 7.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  10. 10.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a toy robot (d) a plain wall switch
  11. 11.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  12. 12.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the power LED (d) the voltage regulator
  14. 14.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the main chip (c) the power LED (d) the reset button
  15. 15.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  16. 16.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) connect sensors and LEDs
  17. 17.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
  18. 18.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a hand pump (d) a microwave oven
  19. 19.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  20. 20.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a spinning top (d) a smart watch
  21. 21.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  22. 22.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a toy robot (d) a TV remote
  23. 23.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) typed on the chip (d) sent by sound
  24. 24.True or false: a laptop needs much more power. (a) False (b) True
  25. 25.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  26. 26.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a bicycle bell (d) a candle
  27. 27.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  28. 28.True or false: a microcontroller has no screen of its own. (a) True (b) False
  29. 29.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a smart watch (d) a plain wall switch
  30. 30.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a bicycle bell (d) a digital alarm clock
  31. 31.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  32. 32.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  33. 33.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the reset button (d) the USB port
  34. 34.True or false: a microcontroller runs one small program. (a) False (b) True
  35. 35.True or false: a laptop runs many apps at once. (a) True (b) False
  36. 36.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a candle (c) a digital thermometer (d) a smart watch
  37. 37.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  39. 39.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  40. 40.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True

Answer key

  1. Yes
  2. keeps the voltage steady
  3. a washing machine
  4. False
  5. the pins
  6. a digital thermometer
  7. No
  8. No
  9. microcontroller
  10. a toy robot
  11. laptop
  12. a computer on one chip
  13. the main chip
  14. the power LED
  15. No
  16. connect sensors and LEDs
  17. flash memory
  18. a microwave oven
  19. Yes
  20. a smart watch
  21. True
  22. a spinning top
  23. uploaded over USB
  24. True
  25. microcontroller
  26. a TV remote
  27. False
  28. True
  29. a plain wall switch
  30. a digital alarm clock
  31. Yes
  32. laptop
  33. the USB port
  34. True
  35. True
  36. a candle
  37. No
  38. False
  39. False
  40. True

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