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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 681 · 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.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  2. 2.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the reset button (c) the power LED (d) the voltage regulator
  3. 3.🧭 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
  4. 4.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a toy robot (d) a spinning top
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  6. 6.True or false: a laptop has a built-in keyboard. (a) False (b) True
  7. 7.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the power LED (c) the main chip (d) the pins
  10. 10.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the main chip (c) the reset button (d) the pins
  11. 11.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
  12. 12.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
  13. 13.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  14. 14.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  17. 17.True or false: a laptop runs one small program. (a) True (b) False
  18. 18.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) restarts the program
  19. 19.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  21. 21.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a hand pump (d) a washing machine
  22. 22.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) restarts the program
  23. 23.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a smart watch (d) a wind-up toy
  24. 24.True or false: a laptop has no screen of its own. (a) True (b) False
  25. 25.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
  27. 27.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  29. 29.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  30. 30.True or false: a microcontroller runs one small program. (a) True (b) False
  31. 31.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a smart watch (d) a bicycle bell
  32. 32.Which of these has no microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a digital thermometer (d) a smart watch
  33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
  34. 34.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  35. 35.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  36. 36.Which of these usually has a microcontroller inside? (a) a hand pump (b) a washing machine (c) a spinning top (d) a wind-up toy
  37. 37.Which job is done by the main chip? (a) runs the program (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  38. 38.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  39. 39.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the power LED (d) the voltage regulator
  40. 40.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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