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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 611 · 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 brings power and code? (a) the reset button (b) the USB port (c) the power LED (d) the pins
  2. 2.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  3. 3.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  4. 4.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  6. 6.Which job is done by the main chip? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  8. 8.Which job is done by the voltage regulator? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the pins (c) the voltage regulator (d) the power LED
  10. 10.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) a 230 V cable (d) USB or a 9 V battery
  11. 11.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  12. 12.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  14. 14.True or false: a microcontroller has no screen of its own. (a) True (b) False
  15. 15.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a plain wall switch (d) a TV remote
  16. 16.True or false: a laptop has no screen of its own. (a) False (b) True
  17. 17.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  18. 18.Which job is done by the pins? (a) runs the program (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  19. 19.True or false: a laptop runs many apps at once. (a) True (b) False
  20. 20.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the reset button (d) the pins
  21. 21.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a digital thermometer (d) a candle
  22. 22.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  23. 23.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the pins (d) the main chip
  24. 24.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  26. 26.🤖 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
  27. 27.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  28. 28.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  29. 29.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) brings power and code
  31. 31.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  32. 32.Which job is done by the reset button? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  33. 33.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  34. 34.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a digital alarm clock (d) a spinning top
  36. 36.True or false: a laptop uses very little power. (a) False (b) True
  37. 37.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  38. 38.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  39. 39.True or false: a microcontroller runs one small program. (a) False (b) True
  40. 40.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the power LED (c) the main chip (d) the USB port

Answer key

  1. the USB port
  2. False
  3. a computer on one chip
  4. No
  5. False
  6. runs the program
  7. laptop
  8. keeps the voltage steady
  9. the power LED
  10. USB or a 9 V battery
  11. False
  12. Yes
  13. microcontroller
  14. True
  15. a TV remote
  16. False
  17. microcontroller
  18. connect sensors and LEDs
  19. True
  20. the pins
  21. a digital thermometer
  22. brings power and code
  23. the voltage regulator
  24. True
  25. laptop
  26. uploaded over USB
  27. Yes
  28. True
  29. No
  30. shows the board is on
  31. True
  32. restarts the program
  33. True
  34. False
  35. a digital alarm clock
  36. False
  37. False
  38. Yes
  39. True
  40. the main chip

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