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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 138 · 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.

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

Answer key

  1. True
  2. Yes
  3. True
  4. connect sensors and LEDs
  5. Yes
  6. Yes
  7. Yes
  8. True
  9. a toy robot
  10. a washing machine
  11. USB or a 9 V battery
  12. False
  13. microcontroller
  14. the reset button
  15. False
  16. uploaded over USB
  17. False
  18. False
  19. the power LED
  20. the main chip
  21. it starts again
  22. the pins
  23. microcontroller
  24. the USB port
  25. No
  26. True
  27. the voltage regulator
  28. a hand pump
  29. False
  30. False
  31. laptop
  32. No
  33. True
  34. Yes
  35. brings power and code
  36. a candle
  37. a digital thermometer
  38. False
  39. True
  40. True

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