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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 277 · 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.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  2. 2.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  3. 3.Which job is done by the power LED? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the reset button (c) the USB port (d) the pins
  5. 5.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  7. 7.Which job is done by the reset button? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs
  8. 8.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) sent by sound (d) drawn with a pen
  9. 9.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  10. 10.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a washing machine (d) a smart watch
  11. 11.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  12. 12.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  13. 13.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the USB cable (d) the power LED
  14. 14.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the voltage regulator (c) the power LED (d) the main chip
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  16. 16.Which of these has no microcontroller inside? (a) a spinning top (b) a toy robot (c) a TV remote (d) a microwave oven
  17. 17.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  18. 18.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a smart watch (d) a wind-up toy
  19. 19.True or false: a laptop has a built-in keyboard. (a) True (b) False
  20. 20.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  21. 21.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the voltage regulator (c) the power LED (d) the USB port
  22. 22.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) restarts the program (d) shows the board is on
  23. 23.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  25. 25.True or false: a microcontroller runs one small program. (a) True (b) False
  26. 26.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  27. 27.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  28. 28.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) runs the program
  29. 29.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which of these has no microcontroller inside? (a) a microwave oven (b) a candle (c) a washing machine (d) a digital alarm clock
  31. 31.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the reset button (c) the power LED (d) the pins
  32. 32.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  33. 33.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  34. 34.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a bicycle bell (d) a wind-up toy
  35. 35.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  37. 37.Which of these usually has a microcontroller inside? (a) a smart watch (b) a plain wall switch (c) a candle (d) a spinning top
  38. 38.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a big desktop computer (d) a computer on one chip
  39. 39.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the reset button (c) the USB port (d) the main chip
  40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop

Answer key

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

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