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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 459 · 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 runs the program? (a) the power LED (b) the main chip (c) the pins (d) the reset button
  2. 2.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  3. 3.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  4. 4.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  5. 5.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  6. 6.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  7. 7.Which job is done by the pins? (a) runs the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  8. 8.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  9. 9.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  10. 10.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  11. 11.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
  12. 12.Which of these has no microcontroller inside? (a) a spinning top (b) a washing machine (c) a digital thermometer (d) a microwave oven
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  14. 14.Which job is done by the main chip? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) runs the program
  15. 15.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a bicycle bell (d) a plain wall switch
  16. 16.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the reset button (c) the pins (d) the USB port
  17. 17.True or false: a microcontroller runs one small program. (a) True (b) False
  18. 18.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a toy robot (d) a plain wall switch
  19. 19.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a bicycle bell (d) a digital alarm clock
  21. 21.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  22. 22.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  23. 23.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a laptop runs one small program. (a) False (b) True
  25. 25.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  26. 26.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  27. 27.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  28. 28.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  29. 29.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  30. 30.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
  32. 32.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  33. 33.Which of these has no microcontroller inside? (a) a toy robot (b) a digital thermometer (c) a digital alarm clock (d) a hand pump
  34. 34.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  35. 35.True or false: a laptop has a built-in keyboard. (a) True (b) False
  36. 36.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  37. 37.Which of these has no microcontroller inside? (a) a candle (b) a microwave oven (c) a washing machine (d) a digital thermometer
  38. 38.True or false: a microcontroller uses very little power. (a) True (b) False
  39. 39.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True

Answer key

  1. the main chip
  2. keeps the voltage steady
  3. No
  4. restarts the program
  5. microcontroller
  6. Yes
  7. connect sensors and LEDs
  8. True
  9. laptop
  10. True
  11. brings power and code
  12. a spinning top
  13. microcontroller
  14. runs the program
  15. a digital thermometer
  16. the pins
  17. True
  18. a plain wall switch
  19. False
  20. a digital alarm clock
  21. False
  22. laptop
  23. No
  24. False
  25. uploaded over USB
  26. No
  27. microcontroller
  28. False
  29. False
  30. Yes
  31. flash memory
  32. Yes
  33. a hand pump
  34. False
  35. True
  36. No
  37. a candle
  38. True
  39. No
  40. True

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