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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 616 · 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 job is done by the power LED? (a) runs the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  2. 2.Which job is done by the USB port? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) runs the program
  3. 3.Which job is done by the pins? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
  4. 4.True or false: a laptop needs much more power. (a) False (b) True
  5. 5.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the pins (c) the USB port (d) the voltage regulator
  7. 7.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  8. 8.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  9. 9.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  11. 11.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  12. 12.True or false: a laptop has no screen of its own. (a) False (b) True
  13. 13.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  14. 14.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a plain wall switch (d) a digital alarm clock
  15. 15.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the reset button (c) the pins (d) the USB port
  17. 17.Which of these has no microcontroller inside? (a) a smart watch (b) a candle (c) a washing machine (d) a digital alarm clock
  18. 18.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  19. 19.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  20. 20.True or false: a microcontroller needs much more power. (a) True (b) False
  21. 21.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  22. 22.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  23. 23.🤖 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
  24. 24.True or false: a microcontroller has no screen of its own. (a) True (b) False
  25. 25.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  26. 26.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the pins (c) the voltage regulator (d) the reset button
  27. 27.Which job is done by the reset button? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  28. 28.True or false: a laptop uses very little power. (a) True (b) False
  29. 29.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  30. 30.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  31. 31.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  32. 32.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  33. 33.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  34. 34.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
  35. 35.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  36. 36.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  37. 37.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a digital alarm clock (d) a plain wall switch
  38. 38.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a spinning top (d) a plain wall switch
  39. 39.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the pins (d) the main chip

Answer key

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

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