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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 389 · 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.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  2. 2.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the power LED (d) the USB port
  6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  7. 7.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the USB port (d) the voltage regulator
  8. 8.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  9. 9.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  10. 10.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  11. 11.True or false: a laptop runs one small program. (a) True (b) False
  12. 12.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  13. 13.True or false: a microcontroller runs one small program. (a) True (b) False
  14. 14.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a hand pump (d) a wind-up toy
  15. 15.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the pins (c) the USB port (d) the reset button
  17. 17.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the power LED (c) the voltage regulator (d) the USB port
  18. 18.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  19. 19.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  20. 20.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  21. 21.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a plain wall switch (d) a hand pump
  22. 22.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a TV remote (d) a wind-up toy
  23. 23.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) the board breaks (d) it stops forever
  24. 24.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a wind-up toy (d) a toy robot
  25. 25.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a bicycle bell (d) a digital alarm clock
  27. 27.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a big desktop computer (d) a computer on one chip
  28. 28.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  29. 29.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  30. 30.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a plain wall switch (d) a washing machine
  31. 31.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) USB or a 9 V battery (d) bare mains wires
  33. 33.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the pins (c) the power LED (d) the voltage regulator
  34. 34.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  36. 36.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  39. 39.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop

Answer key

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

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