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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 240 · 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 runs many apps at once. (a) True (b) False
  2. 2.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a smart watch (d) a candle
  3. 3.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a hand pump (d) a microwave oven
  4. 4.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the pins (c) the main chip (d) the voltage regulator
  6. 6.True or false: a microcontroller runs one small program. (a) True (b) False
  7. 7.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  8. 8.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a wind-up toy (d) a washing machine
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the pins (d) the USB port
  10. 10.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  11. 11.True or false: a laptop runs one small program. (a) True (b) False
  12. 12.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a wind-up toy (d) a toy robot
  13. 13.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
  14. 14.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  15. 15.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  16. 16.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
  17. 17.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) uploaded over USB (d) typed on the chip
  19. 19.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the voltage regulator (c) the reset button (d) the USB port
  20. 20.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  21. 21.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  22. 22.Which of these has no microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a microwave oven (d) a TV remote
  23. 23.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  24. 24.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  25. 25.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the main chip (d) the voltage regulator
  26. 26.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a wind-up toy (c) a plain wall switch (d) a candle
  27. 27.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  28. 28.True or false: a microcontroller uses very little power. (a) True (b) False
  29. 29.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) restarts the program (d) runs the program
  30. 30.True or false: a laptop needs much more power. (a) False (b) True
  31. 31.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  32. 32.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  33. 33.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) runs the program
  34. 34.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  35. 35.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  36. 36.True or false: a microcontroller runs many apps at once. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  38. 38.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the USB port (c) the voltage regulator (d) the power LED
  39. 39.True or false: a microcontroller needs much more power. (a) False (b) True
  40. 40.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. True
  2. a smart watch
  3. a microwave oven
  4. True
  5. the main chip
  6. True
  7. True
  8. a washing machine
  9. the pins
  10. No
  11. False
  12. a toy robot
  13. it starts again
  14. microcontroller
  15. Yes
  16. a computer on one chip
  17. Yes
  18. uploaded over USB
  19. the reset button
  20. True
  21. Yes
  22. a bicycle bell
  23. restarts the program
  24. USB or a 9 V battery
  25. the USB port
  26. a digital alarm clock
  27. laptop
  28. True
  29. brings power and code
  30. True
  31. Yes
  32. No
  33. runs the program
  34. No
  35. True
  36. False
  37. laptop
  38. the voltage regulator
  39. False
  40. Yes

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