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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 502 · 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.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a big desktop computer (d) a kind of bulb
  2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  3. 3.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  4. 4.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  5. 5.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a digital thermometer (d) a candle
  8. 8.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a washing machine (d) a spinning top
  9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the voltage regulator (d) the reset button
  10. 10.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a hand pump (d) a digital thermometer
  11. 11.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  12. 12.Which job is done by the voltage regulator? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) connect sensors and LEDs
  13. 13.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  14. 14.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a candle (d) a toy robot
  15. 15.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  16. 16.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a 230 V cable (d) a wall socket directly
  17. 17.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a candle has no microcontroller inside. (a) True (b) False
  19. 19.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the pins (d) the main chip
  20. 20.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  21. 21.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a smart watch (d) a bicycle bell
  22. 22.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  23. 23.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  24. 24.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a candle (d) a toy robot
  25. 25.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  26. 26.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  27. 27.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  29. 29.True or false: a microcontroller uses very little power. (a) False (b) True
  30. 30.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  31. 31.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
  32. 32.True or false: a laptop has a built-in keyboard. (a) True (b) False
  33. 33.True or false: a laptop runs many apps at once. (a) False (b) True
  34. 34.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  35. 35.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  37. 37.Which job is done by the power LED? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  38. 38.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  39. 39.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a microcontroller has no screen of its own. (a) True (b) False

Answer key

  1. a computer on one chip
  2. laptop
  3. False
  4. False
  5. Yes
  6. False
  7. a digital thermometer
  8. a spinning top
  9. the USB port
  10. a hand pump
  11. connect sensors and LEDs
  12. keeps the voltage steady
  13. True
  14. a toy robot
  15. No
  16. USB or a 9 V battery
  17. Yes
  18. True
  19. the pins
  20. Yes
  21. a smart watch
  22. microcontroller
  23. Yes
  24. a candle
  25. False
  26. True
  27. Yes
  28. False
  29. True
  30. False
  31. it starts again
  32. True
  33. True
  34. True
  35. No
  36. microcontroller
  37. shows the board is on
  38. False
  39. No
  40. True

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