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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 574 · 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 of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a hand pump (d) a washing machine
  2. 2.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
  3. 3.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  4. 4.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  6. 6.True or false: a microcontroller runs many apps at once. (a) False (b) True
  7. 7.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a digital alarm clock (d) a bicycle bell
  8. 8.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  9. 9.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a toy robot (d) a wind-up toy
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the power LED (c) the pins (d) the reset button
  11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  12. 12.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a hand pump (d) a bicycle bell
  13. 13.True or false: a candle has no microcontroller inside. (a) False (b) True
  14. 14.True or false: a laptop has no screen of its own. (a) True (b) False
  15. 15.🤖 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
  16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the power LED (d) the pins
  18. 18.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the voltage regulator (c) the pins (d) the USB port
  19. 19.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  20. 20.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
  21. 21.Which of these usually has a microcontroller inside? (a) a toy robot (b) a spinning top (c) a wind-up toy (d) a candle
  22. 22.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  23. 23.Which job is done by the main chip? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) brings power and code
  24. 24.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which job is done by the reset button? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  27. 27.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a laptop needs much more power. (a) False (b) True
  29. 29.True or false: a microcontroller runs one small program. (a) False (b) True
  30. 30.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) runs the program (d) connect sensors and LEDs
  31. 31.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  33. 33.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  34. 34.Which job is done by the voltage regulator? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) runs the program
  35. 35.Which of these has no microcontroller inside? (a) a TV remote (b) a washing machine (c) a digital thermometer (d) a bicycle bell
  36. 36.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the pins (d) the power LED
  38. 38.Which of these has no microcontroller inside? (a) a hand pump (b) a smart watch (c) a digital alarm clock (d) a microwave oven
  39. 39.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  40. 40.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks

Answer key

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

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