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Electronics Worksheet: What Is a Microcontroller

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

Answer key

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

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