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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 495 · 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 part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the pins (d) the USB port
  2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  3. 3.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the main chip (d) the USB port
  4. 4.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  5. 5.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  6. 6.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
  8. 8.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  9. 9.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  10. 10.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  11. 11.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a hand pump (d) a washing machine
  12. 12.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
  13. 13.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a wind-up toy (d) a toy robot
  14. 14.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  15. 15.True or false: a microcontroller runs one small program. (a) False (b) True
  16. 16.Which job is done by the USB port? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) brings power and code
  17. 17.Which job is done by the power LED? (a) keeps the voltage steady (b) shows the board is on (c) restarts the program (d) runs the program
  18. 18.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it starts again (d) it deletes itself
  19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a wind-up toy (d) a candle
  21. 21.True or false: a laptop has a built-in keyboard. (a) True (b) False
  22. 22.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
  23. 23.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  24. 24.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  26. 26.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  27. 27.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  28. 28.True or false: a laptop has no screen of its own. (a) True (b) False
  29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  30. 30.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  31. 31.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  32. 32.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  33. 33.True or false: a microcontroller uses very little power. (a) False (b) True
  34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  35. 35.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a toy robot (d) a candle
  36. 36.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  37. 37.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a digital thermometer (d) a bicycle bell
  38. 38.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  39. 39.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the pins (d) the voltage regulator
  40. 40.True or false: a laptop runs one small program. (a) True (b) False

Answer key

  1. the power LED
  2. laptop
  3. the reset button
  4. True
  5. True
  6. uploaded over USB
  7. USB or a 9 V battery
  8. connect sensors and LEDs
  9. False
  10. False
  11. a hand pump
  12. a computer on one chip
  13. a toy robot
  14. Yes
  15. True
  16. brings power and code
  17. shows the board is on
  18. it starts again
  19. No
  20. a microwave oven
  21. True
  22. runs the program
  23. False
  24. No
  25. False
  26. False
  27. False
  28. False
  29. microcontroller
  30. False
  31. Yes
  32. microcontroller
  33. True
  34. microcontroller
  35. a candle
  36. Yes
  37. a bicycle bell
  38. laptop
  39. the pins
  40. False

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