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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 176 · 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.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  2. 2.True or false: a microcontroller runs many apps at once. (a) True (b) False
  3. 3.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a hand pump (d) a plain wall switch
  4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  5. 5.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  6. 6.Which of these usually has a microcontroller inside? (a) a smart watch (b) a spinning top (c) a wind-up toy (d) a plain wall switch
  7. 7.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  8. 8.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  9. 9.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  10. 10.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) uploaded over USB (d) drawn with a pen
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the USB port (d) the power LED
  12. 12.Which of these usually has a microcontroller inside? (a) a hand pump (b) a washing machine (c) a bicycle bell (d) a plain wall switch
  13. 13.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a TV remote (d) a candle
  14. 14.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  15. 15.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the power LED (d) the USB port
  16. 16.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  17. 17.Which job is done by the voltage regulator? (a) brings power and code (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  18. 18.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) a wall socket directly (d) USB or a 9 V battery
  20. 20.Which job is done by the main chip? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs
  21. 21.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a toy robot (d) a plain wall switch
  22. 22.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the voltage regulator (c) the USB port (d) the reset button
  23. 23.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a big desktop computer (d) a type of battery
  24. 24.Which job is done by the USB port? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) brings power and code
  25. 25.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  27. 27.Which job is done by the power LED? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) shows the board is on
  28. 28.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  29. 29.True or false: a microcontroller needs much more power. (a) True (b) False
  30. 30.True or false: a laptop runs one small program. (a) False (b) True
  31. 31.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  32. 32.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a toy robot (d) a spinning top
  33. 33.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  34. 34.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) keeps the voltage steady (d) shows the board is on
  35. 35.True or false: a laptop needs much more power. (a) True (b) False
  36. 36.True or false: a laptop uses very little power. (a) True (b) False
  37. 37.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  38. 38.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
  39. 39.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  40. 40.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a wind-up toy (d) a washing machine

Answer key

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

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